Adeline, Resplendent Cathar's power is equal to the number of creatures you control.
Whenever you attack, for each opponent, create a 1/1 white Human creature token that's tapped and attacking that player or a planeswalker they control.
* /
4
{3}{W}
Akroma's Will
Instant
Choose one. If you control a commander as you cast this spell, you may choose both instead.
• Creatures you control gain flying, vigilance, and double strike until end of turn.
• Creatures you control gain lifelink, indestructible, and protection from all colors until end of turn.
{5}
Alhammarret's Archive
Legendary Artifact
If you would gain life, you gain twice that much life instead.
If you would draw a card except the first one you draw in each of your draw steps, draw two cards instead.
{U}
An Offer You Can't Refuse
Instant
Counter target noncreature spell. Its controller creates two Treasure tokens. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")
--
Ancient Tomb
Land
{T}: Add {C}{C}. Ancient Tomb deals 2 damage to you.
{2}
Arcane Signet
Artifact
{T}: Add one mana of any color in your commander's color identity.
{3}{B}{B}
Archfiend of Ifnir
Creature - Demon
Flying
Whenever you cycle or discard another card, put a -1/-1 counter on each creature your opponents control.
Cycling {2} ({2}, Discard this card: Draw a card.)
5 /
4
{2}{W}{B}
Aryel, Knight of Windgrace
Legendary Creature - Human Knight
Vigilance
{2}{W}, {T}: Create a 2/2 white Knight creature token with vigilance.
{B}, {T}, Tap X untapped Knights you control: Destroy target creature with power X or less.
4 /
4
{4}{W}{W}
Austere Command
Sorcery
Choose two --
• Destroy all artifacts.
• Destroy all enchantments.
• Destroy all creatures with mana value 3 or less.
• Destroy all creatures with mana value 4 or greater.
{2}{W}{W}
Battle Angels of Tyr
Creature - Angel Knight
Flying, myriad
Whenever Battle Angels of Tyr deals combat damage to a player, draw a card if that player has more cards in hand than each other player. Then you create a Treasure token if that player controls more lands than each other player. Then you gain 3 life if that player has more life than each other player.
4 /
4
{2}{B}
Black Market Connections
Enchantment
At the beginning of your precombat main phase, choose one or more --
• Sell Contraband -- Create a Treasure token. You lose 1 life.
• Buy Information -- Draw a card. You lose 2 life.
• Hire a Mercenary -- Create a 3/2 colorless Shapeshifter creature token with changeling. You lose 3 life. (It has every creature type.)
{1}{W}
Blind Obedience
Enchantment
Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.)
Artifacts and creatures your opponents control enter the battlefield tapped.
--
Bojuka Bog
Land
Bojuka Bog enters the battlefield tapped.
When Bojuka Bog enters the battlefield, exile target player's graveyard.
{T}: Add {B}.
{U}
Brainstorm
Instant
Draw three cards, then put two cards from your hand on top of your library in any order.
{3}{W}{W}
Cathars' Crusade
Enchantment
Whenever a creature enters the battlefield under your control, put a +1/+1 counter on each creature you control.
{2}{W}{W}{W}
Cavalier of Dawn
Creature - Elemental Knight
Vigilance
When Cavalier of Dawn enters the battlefield, destroy up to one target nonland permanent. Its controller creates a 3/3 colorless Golem artifact creature token.
When Cavalier of Dawn dies, return target artifact or enchantment card from your graveyard to your hand.
4 /
6
{2}{B}{B}{B}
Cavalier of Night
Creature - Elemental Knight
Lifelink
When Cavalier of Night enters the battlefield, you may sacrifice another creature. When you do, destroy target creature an opponent controls.
When Cavalier of Night dies, return target creature card with mana value 3 or less from your graveyard to the battlefield.
4 /
5
{X}{1}{U}
Change of Plans
Instant
Each of X target creatures you control connive. You may have any number of them phase out. (To have a creature connive, draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on that creature. Treat phased-out permanents and anything attached to them as though they don't exist until their controller's next turn.)
{B}
Changeling Outcast
Creature - Shapeshifter
Changeling (This card is every creature type.)
Changeling Outcast can't block and can't be blocked.
1 /
1
{1}{W}
Chivalric Alliance
Enchantment
Whenever you attack with two or more creatures, draw a card.
{2}, Discard a card: Create a 2/2 white and blue Knight creature token with vigilance.
--
Command Tower
Land
{T}: Add one mana of any color in your commander's color identity.
{W}{B}
Corpse Knight
Creature - Zombie Knight
Whenever another creature enters the battlefield under your control, each opponent loses 1 life.
2 /
2
{1}{U}
Cyclonic Rift
Instant
Return target nonland permanent you don't control to its owner's hand.
Overload {6}{U} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")
{B}{B}
Damn
Sorcery
Destroy target creature. A creature destroyed this way can't be regenerated.
Overload {2}{W}{W} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")
{1}{B}
Demonic Tutor
Sorcery
Search your library for a card, put that card into your hand, then shuffle.
{W}{U}
Dovin's Veto
Instant
This spell can't be countered.
Counter target noncreature spell.
{2}{W}
Duelist's Heritage
Enchantment
Whenever one or more creatures attack, you may have target attacking creature gain double strike until end of turn.
--
Eiganjo, Seat of the Empire
Legendary Land
{T}: Add {W}.
Channel -- {2}{W}, Discard Eiganjo, Seat of the Empire: It deals 4 damage to target attacking or blocking creature. This ability costs {1} less to activate for each legendary creature you control.
{W}
Esper Sentinel
Artifact Creature - Human Soldier
Whenever an opponent casts their first noncreature spell each turn, draw a card unless that player pays {X}, where X is Esper Sentinel's power.
1 /
1
--
Exotic Orchard
Land
{T}: Add one mana of any color that a land an opponent controls could produce.
{2}{B}
Exsanguinator Cavalry
Creature - Vampire Knight
Menace, lifelink
Whenever a Knight you control deals combat damage to a player, put a +1/+1 counter on that creature and create a Blood token. (It's an artifact with "{1}, {T}, Discard a card, Sacrifice this artifact: Draw a card.")
2 /
3
{2}
Fellwar Stone
Artifact
{T}: Add one mana of any color that a land an opponent controls could produce.
{2}{U}
Fierce Guardianship
Instant
If you control a commander, you may cast this spell without paying its mana cost.
Counter target noncreature spell.
--
Flooded Strand
Land
{T}, Pay 1 life, Sacrifice Flooded Strand: Search your library for a Plains or Island card, put it onto the battlefield, then shuffle.
--
Godless Shrine
Land - Plains Swamp
({T}: Add {W} or {B}.)
As Godless Shrine enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.
{1}{B}{B}
Haakon, Stromgald Scourge
Legendary Creature - Zombie Knight
You may cast Haakon, Stromgald Scourge from your graveyard, but not from anywhere else.
As long as Haakon is on the battlefield, you may cast Knight spells from your graveyard.
When Haakon dies, you lose 2 life.
3 /
3
--
Hallowed Fountain
Land - Plains Island
({T}: Add {W} or {U}.)
As Hallowed Fountain enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.
{3}{U}
Herald of Hoofbeats
Creature - Human Knight
Horsemanship (This creature can't be blocked except by creatures with horsemanship.)
Other Knights you control have horsemanship.
3 /
3
{2}{W}{W}
Hero of Bladehold
Creature - Human Knight
Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.)
Whenever Hero of Bladehold attacks, create two 1/1 white Soldier creature tokens that are tapped and attacking.
3 /
4
{X}{W}{U}
Invasion of New Phyrexia
Battle - Siege
(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)
When Invasion of New Phyrexia enters the battlefield, create X 2/2 white and blue Knight creature tokens with vigilance.
--
Teferi Akosa of Zhalfir
Legendary Planeswalker - Teferi
+1: Draw two cards. Then discard two cards unless you discard a creature card.
-2: You get an emblem with "Knights you control get +1/+0 and have ward {1}."
-3: Tap any number of untapped creatures you control. When you do, shuffle target nonland permanent an opponent controls with mana value X or less into its owner's library, where X is the number of creatures tapped this way.
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
{1}{W}{U}{B}
Kamiz, Obscura Oculus
Legendary Creature - Cephalid Rogue
Whenever you attack, target attacking creature can't be blocked this turn. It connives. Then choose another attacking creature with lesser power. That creature gains double strike until end of turn. (To have a creature connive, draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on that creature.)
2 /
4
{3}{W}
Kinsbaile Cavalier
Creature - Kithkin Knight
Knight creatures you control have double strike.
2 /
2
{1}{W}{W}
Knight Exemplar
Creature - Human Knight
First strike (This creature deals combat damage before creatures without first strike.)
Other Knight creatures you control get +1/+1 and have indestructible. (Damage and effects that say "destroy" don't destroy them.)
2 /
2
{W}{W}
Knight of the White Orchid
Creature - Human Knight
First strike
When Knight of the White Orchid enters the battlefield, if an opponent controls more lands than you, you may search your library for a Plains card, put it onto the battlefield, then shuffle.
2 /
2
{3}{W}{B}
Knights of the Black Rose
Creature - Human Knight
When Knights of the Black Rose enters the battlefield, you become the monarch.
Whenever an opponent becomes the monarch, if you were the monarch as the turn began, that player loses 2 life and you gain 2 life.
4 /
4
{1}{W}{B}
Knights' Charge
Enchantment
Whenever a Knight you control attacks, each opponent loses 1 life and you gain 1 life.
{6}{W}{B}, Sacrifice Knights' Charge: Return all Knight creature cards from your graveyard to the battlefield.
{2}
Lightning Greaves
Artifact - Equipment
Equipped creature has haste and shroud. (It can't be the target of spells or abilities.)
Equip {0}
{3}{B}{B}
Living Death
Sorcery
Each player exiles all creature cards from their graveyard, then sacrifices all creatures they control, then puts all cards they exiled this way onto the battlefield.
{4}{B}
Locthwain Lancer
Creature - Human Knight
Menace
Whenever a nontoken Knight you control dies, each opponent loses 1 life and you draw a card.
5 /
5
{U}{U}
Mana Drain
Instant
Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.
--
Marsh Flats
Land
{T}, Pay 1 life, Sacrifice Marsh Flats: Search your library for a Plains or Swamp card, put it onto the battlefield, then shuffle.
{2}{B}
Midnight Reaper
Creature - Zombie Knight
Whenever a nontoken creature you control dies, Midnight Reaper deals 1 damage to you and you draw a card.
3 /
2
{1}{B}{B}{ // }{1}{B}{B}
Murderous Rider // Swift End
Creature - Zombie Knight // Instant - Adventure
Lifelink
When Murderous Rider dies, put it on the bottom of its owner's library.
Destroy target creature or planeswalker. You lose 2 life. (Then exile this card. You may cast the creature later from exile.)
2 /
3
{2}{W}
Nadaar, Selfless Paladin
Legendary Creature - Dragon Knight
Vigilance
Whenever Nadaar, Selfless Paladin enters the battlefield or attacks, venture into the dungeon. (Enter the first room or advance to the next room.)
Other creatures you control get +1/+1 as long as you've completed a dungeon.
3 /
3
--
Otawara, Soaring City
Legendary Land
{T}: Add {U}.
Channel -- {3}{U}, Discard Otawara, Soaring City: Return target artifact, creature, enchantment, or planeswalker to its owner's hand. This ability costs {1} less to activate for each legendary creature you control.
{0}
Pact of Negation
Instant
Counter target spell.
At the beginning of your next upkeep, pay {3}{U}{U}. If you don't, you lose the game.
--
Path of Ancestry
Land
Path of Ancestry enters the battlefield tapped.
{T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)
{W}
Path to Exile
Instant
Exile target creature. Its controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Plains
Basic Land - Plains
({T}: Add {W}.)
--
Polluted Delta
Land
{T}, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.
--
Raffine's Tower
Land - Plains Island Swamp
({T}: Add {W}, {U}, or {B}.)
Raffine's Tower enters the battlefield tapped.
Cycling {3} ({3}, Discard this card: Draw a card.)
{W}{U}{B}
Raffine, Scheming Seer
Legendary Creature - Sphinx Demon
Flying, ward {1}
Whenever you attack, target attacking creature connives X, where X is the number of attacking creatures. (Draw X cards, then discard X cards. Put a +1/+1 counter on that creature for each nonland card discarded this way.)
1 /
4
{B}
Reanimate
Sorcery
Put target creature card from a graveyard onto the battlefield under your control. You lose life equal to its mana value.
{2}{U}
Rhystic Study
Enchantment
Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.
{3}{W}{W}
Righteous Confluence
Sorcery
Choose three. You may choose the same mode more than once.
• Create a 2/2 white Knight creature token with vigilance.
• Exile target enchantment.
• You gain 5 life.
--
Rogue's Passage
Land
{T}: Add {C}.
{4}, {T}: Target creature can't be blocked this turn.
{1}{W}{U}{B}
Sidar Jabari of Zhalfir
Legendary Creature - Human Knight
Eminence -- Whenever you attack with one or more Knights, if Sidar Jabari of Zhalfir is in the command zone or on the battlefield, draw a card, then discard a card.
Flying, first strike
Whenever Sidar Jabari deals combat damage to a player, return target Knight creature card from your graveyard to the battlefield.
4 /
3
{3}
Sigiled Sword of Valeron
Artifact - Equipment
Equipped creature gets +2/+0, has vigilance, and is a Knight in addition to its other types.
Whenever equipped creature attacks, create a 2/2 white Knight creature token with vigilance that's attacking.
Equip {3}
{5}{W}
Silverwing Squadron
Creature - Human Knight
Flying, vigilance
Silverwing Squadron's power and toughness are each equal to the number of creatures you control.
Whenever Silverwing Squadron attacks, create a number of 2/2 white Knight creature tokens with vigilance equal to the number of opponents you have.
* /
*
{2}{W}
Skyhunter Strike Force
Creature - Cat Knight
Flying
Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)
Lieutenant -- As long as you control your commander, other creatures you control have melee.
2 /
2
{1}{B}{ // }{B}
Smitten Swordmaster // Curry Favor
Creature - Human Knight // Sorcery - Adventure
Lifelink
You gain X life and each opponent loses X life, where X is the number of Knights you control.
2 /
1
{3}{W}
Smothering Tithe
Enchantment
Whenever an opponent draws a card, that player may pay {2}. If the player doesn't, you create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")
{1}
Sol Ring
Artifact
{T}: Add {C}{C}.
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
{U}
Swan Song
Instant
Counter target enchantment, instant, or sorcery spell. Its controller creates a 2/2 blue Bird creature token with flying.
{2}
Swiftfoot Boots
Artifact - Equipment
Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control.)
Equip {1}
{2}
Sword of the Animist
Legendary Artifact - Equipment
Equipped creature gets +1/+1.
Whenever equipped creature attacks, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
Equip {2}
{W}
Swords to Plowshares
Instant
Exile target creature. Its controller gains life equal to its power.
{3}{B}{B}
Syr Konrad, the Grim
Legendary Creature - Human Knight
Whenever another creature dies, or a creature card is put into a graveyard from anywhere other than the battlefield, or a creature card leaves your graveyard, Syr Konrad, the Grim deals 1 damage to each opponent.
{1}{B}: Each player mills a card. (They each put the top card of their library into their graveyard.)
5 /
4
--
Takenuma, Abandoned Mire
Legendary Land
{T}: Add {B}.
Channel -- {3}{B}, Discard Takenuma, Abandoned Mire: Mill three cards, then return a creature or planeswalker card from your graveyard to your hand. This ability costs {1} less to activate for each legendary creature you control.
{2}{W}
Teferi's Protection
Instant
Until your next turn, your life total can't change and you gain protection from everything. All permanents you control phase out. (While they're phased out, they're treated as though they don't exist. They phase in before you untap during your untap step.)
Exile Teferi's Protection.
{4}{W}{W}
The Circle of Loyalty
Legendary Artifact
This spell costs {1} less to cast for each Knight you control.
Creatures you control get +1/+1.
Whenever you cast a legendary spell, create a 2/2 white Knight creature token with vigilance.
{3}{W}, {T}: Create a 2/2 white Knight creature token with vigilance.
{W}{B}
Triumphant Adventurer
Creature - Human Knight
Deathtouch
As long as it's your turn, Triumphant Adventurer has first strike.
Whenever Triumphant Adventurer attacks, venture into the dungeon. (Enter the first room or advance to the next room.)
1 /
1
{2}{W}
Unbreakable Formation
Instant
Creatures you control gain indestructible until end of turn.
Addendum -- If you cast this spell during your main phase, put a +1/+1 counter on each of those creatures and they gain vigilance until end of turn.
--
Urza's Saga
Enchantment Land - Urza's Saga
(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I -- Urza's Saga gains "{T}: Add {C}."
II -- Urza's Saga gains "{2}, {T}: Create a 0/0 colorless Construct artifact creature token with 'This creature gets +1/+1 for each artifact you control.'"
III -- Search your library for an artifact card with mana cost {0} or {1}, put it onto the battlefield, then shuffle.
{3}{W}
Valiant Knight
Creature - Human Knight
Other Knights you control get +1/+1.
{3}{W}{W}: Knights you control gain double strike until end of turn.
3 /
4
{2}{W}{U}
Vodalian Wave-Knight
Creature - Merfolk Knight
Whenever you draw a card, put a +1/+1 counter on each other Merfolk and/or Knight you control.
3 /
3
--
Watery Grave
Land - Island Swamp
({T}: Add {U} or {B}.)
As Watery Grave enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.
{W}{B}
Wintermoor Commander
Creature - Human Knight
Deathtouch
Wintermoor Commander's toughness is equal to the number of Knights you control.
Whenever Wintermoor Commander attacks, another target Knight you control gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)
2 /
*
{U}
Wizard Class
Enchantment - Class
(Gain the next level as a sorcery to add its ability.)
You have no maximum hand size.
{2}{U}: Level 2
When this Class becomes level 2, draw two cards.
{4}{U}: Level 3
Whenever you draw a card, put a +1/+1 counter on target creature you control.
--
Dungeon of the Mad Mage
Dungeon
Colorless
Yawning Portal -- You gain 1 life. (Leads to: Dungeon Level)