Whenever enchanted creature attacks, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)
{U}
Arcane Flight
Enchantment - Aura
Enchant creature
Enchanted creature gets +1/+1 and has flying.
{2}{W}
Battle Mastery
Enchantment - Aura
Enchant creature
Enchanted creature has double strike. (It deals both first-strike and regular combat damage.)
{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.
{R}{W}
Boros Charm
Instant
Choose one --
• Boros Charm deals 4 damage to target player or planeswalker.
• Permanents you control gain indestructible until end of turn.
• Target creature gains double strike until end of turn.
{2}
Boros Signet
Artifact
{1}, {T}: Add {R}{W}.
{1}{W}
Brave the Sands
Enchantment
Creatures you control have vigilance.
Each creature you control can block an additional creature each combat.
{2}{W}{W}
Cataclysm
Sorcery
Each player chooses from among the permanents they control an artifact, a creature, an enchantment, and a land, then sacrifices the rest.
{3}{R}{R}
Chandra's Ignition
Sorcery
Target creature you control deals damage equal to its power to each other creature and each opponent.
--
Command Tower
Land
{T}: Add one mana of any color in your commander's color identity.
{2}
Conqueror's Flail
Artifact - Equipment
Equipped creature gets +1/+1 for each color among permanents you control.
As long as Conqueror's Flail is attached to a creature, your opponents can't cast spells during your turn.
Equip {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.")
{W}{W}
Daybreak Coronet
Enchantment - Aura
Enchant creature with another Aura attached to it
Enchanted creature gets +3/+3 and has first strike, vigilance, and lifelink. (Damage dealt by the creature also causes its controller to gain that much life.)
{2}{U}
Deep Freeze
Enchantment - Aura
Enchant creature
Enchanted creature has base power and toughness 0/4, has defender, loses all other abilities, and is a blue Wall in addition to its other colors and types.
{W}
Ethereal Armor
Enchantment - Aura
Enchant creature
Enchanted creature gets +1/+1 for each enchantment you control and has first strike.
--
Evolving Wilds
Land
{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
{5}{W}
Fall of the Thran
Enchantment - Saga
(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I -- Destroy all lands.
II, III -- Each player returns two land cards from their graveyard to the battlefield.
{1}{W}
Flickerform
Enchantment - Aura
Enchant creature
{2}{W}{W}: Exile enchanted creature and all Auras attached to it. At the beginning of the next end step, return that card to the battlefield under its owner's control. If you do, return the other cards exiled this way to the battlefield under their owners' control attached to that creature.
--
Gateway Plaza
Land - Gate
Gateway Plaza enters the battlefield tapped.
When Gateway Plaza enters the battlefield, sacrifice it unless you pay {1}.
{T}: Add one mana of any color.
{2}{W}
Ghostly Prison
Enchantment
Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.
--
Grand Coliseum
Land
Grand Coliseum enters the battlefield tapped.
{T}: Add {C}.
{T}: Add one mana of any color. Grand Coliseum deals 1 damage to you.
{3}{R}{R}
Hour of Devastation
Sorcery
All creatures lose indestructible until end of turn. Hour of Devastation deals 5 damage to each creature and each non-Bolas planeswalker.
{2}{R}
Howl of the Horde
Sorcery
When you cast your next instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.
Raid -- If you attacked this turn, when you cast your next instant or sorcery spell this turn, copy that spell an additional time. You may choose new targets for the copy.
{3}{U}{U}
Illusory Gains
Enchantment - Aura
Enchant creature
You control enchanted creature.
Whenever a creature enters the battlefield under an opponent's control, attach Illusory Gains to that creature.
{4}{U}{U}
In Bolas's Clutches
Legendary Enchantment - Aura
Enchant permanent
You control enchanted permanent.
Enchanted permanent is legendary.
--
Irrigated Farmland
Land - Plains Island
({T}: Add {W} or {U}.)
Irrigated Farmland enters the battlefield tapped.
Cycling {2} ({2}, Discard this card: Draw a card.)
{U}{R}{W}
Jeskai Ascendancy
Enchantment
Whenever you cast a noncreature spell, creatures you control get +1/+1 until end of turn. Untap those creatures.
Whenever you cast a noncreature spell, you may draw a card. If you do, discard a card.
{3}
Jeskai Banner
Artifact
{T}: Add {U}, {R}, or {W}.
{U}{R}{W}, {T}, Sacrifice Jeskai Banner: Draw a card.
{2}{U}
Jeskai Runemark
Enchantment - Aura
Enchant creature
Enchanted creature gets +2/+2.
Enchanted creature has flying as long as you control a red or white permanent.
{4}{U}{U}
Karn's Temporal Sundering
Legendary Sorcery
(You may cast a legendary sorcery only if you control a legendary creature or planeswalker.)
Target player takes an extra turn after this one. Return up to one target nonland permanent to its owner's hand. Exile Karn's Temporal Sundering.
{2}{U}{U}
Leyline of Anticipation
Enchantment
If Leyline of Anticipation is in your opening hand, you may begin the game with it on the battlefield.
You may cast spells as though they had flash.
{1}{W}
Nahiri's Machinations
Enchantment
At the beginning of combat on your turn, target creature you control gains indestructible until end of turn.
{1}{R}: Nahiri's Machinations deals 1 damage to target blocking creature.
{3}{U}{R}{W}
Narset, Enlightened Master
Legendary Creature - Human Monk
First strike, hexproof
Whenever Narset, Enlightened Master attacks, exile the top four cards of your library. Until end of turn, you may cast noncreature spells from among those cards without paying their mana costs.
3 /
2
{1}{U}
One With the Wind
Enchantment - Aura
Enchant creature
Enchanted creature gets +2/+2 and has flying.
{2}{R}{R}
Relentless Assault
Sorcery
Untap all creatures that attacked this turn. After this main phase, there is an additional combat phase followed by an additional main phase.
{1}{R}{R}
Repeating Barrage
Sorcery
Repeating Barrage deals 3 damage to any target.
Raid -- {3}{R}{R}: Return Repeating Barrage from your graveyard to your hand. Activate only if you attacked this turn.
--
Rogue's Passage
Land
{T}: Add {C}.
{4}, {T}: Target creature can't be blocked this turn.
{7}
Scour from Existence
Instant
Exile target permanent.
{2}
Scroll of the Masters
Artifact
Whenever you cast a noncreature spell, put a lore counter on Scroll of the Masters.
{3}, {T}: Target creature you control gets +1/+1 until end of turn for each lore counter on Scroll of the Masters.
{W}
Sigarda's Aid
Enchantment
You may cast Aura and Equipment spells as though they had flash.
Whenever an Equipment enters the battlefield under your control, you may attach it to target creature you control.
{3}{W}{W}
Sigil of the Empty Throne
Enchantment
Whenever you cast an enchantment spell, create a 4/4 white Angel creature token with flying.
{1}
Sol Ring
Artifact
{T}: Add {C}{C}.
{3}{W}{W}
Spectra Ward
Enchantment - Aura
Enchant creature
Enchanted creature gets +2/+2 and has protection from all colors. This effect doesn't remove Auras. (It can't be blocked, targeted, or dealt damage by anything that's white, blue, black, red, or green.)
{2}
Strionic Resonator
Artifact
{2}, {T}: Copy target triggered ability you control. You may choose new targets for the copy. (A triggered ability uses the words "when," "whenever," or "at.")
{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}
{3}{W}{U}
Teferi, Hero of Dominaria
Legendary Planeswalker - Teferi
+1: Draw a card. At the beginning of the next end step, untap up to two lands.
-3: Put target nonland permanent into its owner's library third from the top.
-8: You get an emblem with "Whenever you draw a card, exile target permanent an opponent controls."
L:
4
--
Terramorphic Expanse
Land
{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
{4}{W}
Urza's Ruinous Blast
Legendary Sorcery
(You may cast a legendary sorcery only if you control a legendary creature or planeswalker.)
Exile all nonland permanents that aren't legendary.
{6}{U}{U}
Beacon of Tomorrows
Sorcery
Target player takes an extra turn after this one. Shuffle Beacon of Tomorrows into its owner's library.
{3}{R}
Chandra, the Firebrand
Legendary Planeswalker - Chandra
+1: Chandra, the Firebrand deals 1 damage to any target.
-2: When you cast your next instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.
-6: Chandra, the Firebrand deals 6 damage to each of up to six targets.
L:
3
{7}{U}{U}
Clone Legion
Sorcery
For each creature target player controls, create a token that's a copy of that creature.
{3}{R}{R}
Cone of Flame
Sorcery
Cone of Flame deals 1 damage to any target, 2 damage to another target, and 3 damage to a third target.
{R}{W}
Deflecting Palm
Instant
The next time a source of your choice would deal damage to you this turn, prevent that damage. If damage is prevented this way, Deflecting Palm deals that much damage to that source's controller.
{5}{R}{R}
Fury of the Horde
Sorcery
You may exile two red cards from your hand rather than pay this spell's mana cost.
Untap all creatures that attacked this turn. After this main phase, there is an additional combat phase followed by an additional main phase.
{1}{R}
Giant Spectacle
Enchantment - Aura
Enchant creature
Enchanted creature gets +2/+1 and has menace.
--
Island
Basic Land - Island
({T}: Add {U}.)
{2}{W}{U}
Narset Transcendent
Legendary Planeswalker - Narset
+1: Look at the top card of your library. If it's a noncreature, nonland card, you may reveal it and put it into your hand.
-2: When you cast your next instant or sorcery spell from your hand this turn, it gains rebound. (Exile the spell as it resolves. At the beginning of your next upkeep, you may cast that card from exile without paying its mana cost.)
-9: You get an emblem with "Your opponents can't cast noncreature spells."
L:
6
{2}{R}{R}
Relentless Assault
Sorcery
Untap all creatures that attacked this turn. After this main phase, there is an additional combat phase followed by an additional main phase.
{W}{U}{U}
Render Silent
Instant
Counter target spell. Its controller can't cast spells this turn.
{1}{W}{W}
Shielded by Faith
Enchantment - Aura
Enchant creature
Enchanted creature has indestructible.
Whenever a creature enters the battlefield, you may attach Shielded by Faith to that creature.
{4}
Solemn Simulacrum
Artifact Creature - Golem
When Solemn Simulacrum enters the battlefield, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.