{T}: Add {C}.

{3}, {T}: Target creature with power 3 or less can't be blocked this turn.

As Adaptive Automaton enters the battlefield, choose a creature type.

Adaptive Automaton is the chosen type in addition to its other types.

Other creatures you control of the chosen type get +1/+1.

Whenever a creature you control deals combat damage to a player, you may draw a card.

{1}{U}, {T}: Creatures your opponents control attack this turn if able.

Draw a card. The Ring tempts you.

{4}, {T}: Create a 2/2 colorless Shapeshifter creature token with changeling. (It has every creature type.)

Changeling (This card is every creature type.)

As Bloodline Pretender enters the battlefield, choose a creature type.

Whenever another creature of the chosen type enters the battlefield under your control, put a +1/+1 counter on Bloodline Pretender.

{T}: Add {C}.

{3}, {T}: Draw a card. Activate only if you control a creature with power 4 or greater.

{3}, Sacrifice Burnished Hart: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

Enchant creature

At the beginning of your upkeep, you may look at the top five cards of your library. If you do, you may put a creature card that shares a creature type with enchanted creature from among them onto the battlefield, then you put the rest of those cards on the bottom of your library in any order.

As Cavern of Souls enters the battlefield, choose a creature type.

{T}: Add {C}.

{T}: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.

{T}: Add {U}. Cephalid Coliseum deals 1 damage to you.

Threshold -- {U}, {T}, Sacrifice Cephalid Coliseum: Target player draws three cards, then discards three cards. Activate only if seven or more cards are in your graveyard.

Spells your opponents cast that target Charix, the Raging Isle cost {2} more to cast.

{3}: Charix gets +X/-X until end of turn, where X is the number of Islands you control.

Morph {4}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

When Chromeshell Crab is turned face up, you may exchange control of target creature you control and target creature an opponent controls.

Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it. (For example, if two Goblin Warriors and a Goblin Shaman are on the battlefield, each gets +2/+2.)

Flash

Flying

When Crookclaw Transmuter enters the battlefield, switch target creature's power and toughness until end of turn.

Flash

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.")

{T}, Sacrifice a creature: You gain life equal to the sacrificed creature's toughness.

Choose a creature type. Draw a card for each permanent you control of that type.

As Door of Destinies enters the battlefield, choose a creature type.

Whenever you cast a spell of the chosen type, put a charge counter on Door of Destinies.

Creatures you control of the chosen type get +1/+1 for each charge counter on Door of Destinies.

Target creature has base power and toughness 5/5 until end of turn. The Ring tempts you.

Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.)

{3}{U}{U}: Dreadlight Monstrosity can't be blocked this turn. Activate only if you own a card in exile.

{2}{U}, {T}, Discard a card, Sacrifice a land: Search your library for up to two basic land cards, put them onto the battlefield, then shuffle.

Flash (You may cast this spell any time you could cast an instant.)

Emerge {7}{U} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.)

Drownyard Behemoth has hexproof as long as it entered the battlefield this turn.

{T}: Add {C}.

{S}{S}{S}: Faceless Haven becomes a 4/3 creature with vigilance and all creature types until end of turn. It's still a land. ({S} can be paid with one mana from a snow source.)

{T}, Pay 1 life, Sacrifice Flooded Strand: Search your library for a Plains or Island card, put it onto the battlefield, then shuffle.

Draw a card for each Island you control.

Draw a card for each Island you control, then discard two cards.

As Gauntlet of Power enters the battlefield, choose a color.

Creatures of the chosen color get +1/+1.

Whenever a basic land is tapped for mana of the chosen color, its controller adds an additional one mana of that color.

{U}: Giant Crab gains shroud until end of turn. (It can't be the target of spells or abilities.)

Defender

{2}: Golden Guardian fights another target creature you control. When Golden Guardian dies this turn, return it to the battlefield transformed under your control.

(Transforms from Golden Guardian.)

{T}: Add two mana of any one color.

{4}, {T}: Create a 4/4 colorless Golem artifact creature token.

Create a 0/3 blue Crab creature token.

Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")

Landfall -- Whenever a land enters the battlefield under your control, target player mills three cards.

As Herald's Horn enters the battlefield, choose a creature type.

Creature spells you cast of the chosen type cost {1} less to cast.

At the beginning of your upkeep, look at the top card of your library. If it's a creature card of the chosen type, you may reveal it and put it into your hand.

Until end of turn, whenever a player taps an Island for mana, that player adds an additional {U}.

Defender

When Hightide Hermit enters the battlefield, you get {E}{E}{E}{E} (four energy counters).

Pay {E}{E}: Hightide Hermit can attack this turn as though it didn't have defender.

Return up to two target creatures to their owners' hands. Scry 1. The Ring tempts you.

{U}: Untap Horseshoe Crab.

Whenever another snow permanent enters the battlefield under your control, you may have target player mill two cards.

As Icon of Ancestry enters the battlefield, choose a creature type.

Creatures you control of the chosen type get +1/+1.

{3}, {T}: Look at the top three cards of your library. You may reveal a creature card of the chosen type from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Soulbond (You may pair this creature with another unpaired creature when either enters the battlefield. They remain paired for as long as you control both of them.)

As long as Imperious Mindbreaker is paired with another creature, each of those creatures has "Whenever this creature attacks, each opponent mills cards equal to its toughness."

When Inherited Envelope enters the battlefield, the Ring tempts you.

{T}: Add one mana of any color.

Landfall -- Whenever a land enters the battlefield under your control, you may put a quest counter on Ior Ruin Expedition.

Remove three quest counters from Ior Ruin Expedition and sacrifice it: Draw two cards.

{T}: Add {C}.

{2}, {T}: Scry 1, then you may reveal the top card of your library. If a basic land card is revealed this way, put it onto the battlefield tapped. Activate only if an opponent controls at least two more lands than you.

As Kindred Discovery enters the battlefield, choose a creature type.

Whenever a creature you control of the chosen type enters the battlefield or attacks, draw a card.

{1}{U}, {T}: Put target green creature on top of its owner's library.

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.)

Equip {0}

Creatures you control are every creature type. The same is true for creature spells you control and creature cards you own that aren't on the battlefield.

{3}, {T}: Create a 2/2 blue Shapeshifter creature token with changeling. (It is every creature type.)

{T}: Switch target creature's power and toughness until end of turn.

As Metallic Mimic enters the battlefield, choose a creature type.

Metallic Mimic is the chosen type in addition to its other types.

Each other creature you control of the chosen type enters the battlefield with an additional +1/+1 counter on it.

{T}: Add {U}.

{U}, {T}: Untap target legendary permanent.

Vigilance

When Mirelurk Queen enters the battlefield, target player gets two rad counters.

Whenever one or more nonland cards are milled, draw a card, then put a +1/+1 counter on Mirelurk Queen. This ability triggers only once each turn.

{T}: Add {C}.

{3}, {T}, Sacrifice a creature: You gain life equal to the sacrificed creature's toughness.

Ward {3} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {3}.)

Channel -- {2}{U}, Discard Mirrorshell Crab: Counter target spell or ability unless its controller pays {3}.

{T}, Pay 1 life, Sacrifice Misty Rainforest: Search your library for a Forest or Island card, put it onto the battlefield, then shuffle.

{1}, {T}, Sacrifice Moonsilver Key: Search your library for an artifact card with a mana ability or a basic land card, reveal it, put it into your hand, then shuffle.

{T}: Add {C}.

{1}: Mutavault becomes a 2/2 creature with all creature types until end of turn. It's still a land.

Myriad Landscape enters the battlefield tapped.

{T}: Add {C}.

{2}, {T}, Sacrifice Myriad Landscape: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.

({T}: Add {U}.)

Mystic Sanctuary enters the battlefield tapped unless you control three or more other Islands.

When Mystic Sanctuary enters the battlefield untapped, you may put target instant or sorcery card from your graveyard on top of your library.

{T}: Add {C}.

{2}, {T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.)

{T}: Add {U}.

{1}: Return Oboro, Palace in the Clouds to its owner's hand.

Protection from red

{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.

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.)

{T}: Add {C}.

{T}: Add one mana of any color. Spend this mana only to cast a legendary spell.

{T}: Add one mana of any color among legendary permanents you control.

{3}, {T}, Exile Plaza of Heroes: Target legendary creature gains hexproof and indestructible until end of turn.

When Purple-Crystal Crab dies, draw a card.

Vigilance

When Rangers of Ithilien enters the battlefield, gain control of up to one target creature with lesser power for as long as you control Rangers of Ithilien. Then the Ring tempts you.

Choose one --

• Counter all other spells.

• Switch each creature's power and toughness until end of turn.

• Creatures can't be blocked this turn.

Rivendell enters the battlefield tapped unless you control a legendary creature.

{T}: Add {U}.

{1}{U}, {T}: Scry 2. Activate only if you control a legendary creature.

{T}: Add {C}.

{4}, {T}: Target creature can't be blocked this turn.

Landfall -- Whenever a land enters the battlefield under your control, each opponent mills three cards. (To mill a card, a player puts the top card of their library into their graveyard.)

Whenever Salvage Scuttler attacks, return an artifact you control to its owner's hand.

When Scourge of Fleets enters the battlefield, return each creature your opponents control with toughness X or less to its owner's hand, where X is the number of Islands you control.

{1}, Discard a card: Create a 0/3 blue Crab creature token.

Delirium -- Crabs you control get +1/+1 as long as there are four or more card types among cards in your graveyard.

Draw cards equal to the number of cards in your hand plus one. You have no maximum hand size for the rest of the game.

As Sea Gate, Reborn enters the battlefield, you may pay 3 life. If you don't, it enters the battlefield tapped.

{T}: Add {U}.

At the beginning of your upkeep, surveil 1. Then if you have seven or more cards in your graveyard, you may transform Search for Azcanta. (Look at the top card of your library. You may put that card into your graveyard.)

(Transforms from Search for Azcanta.)

{T}: Add {U}.

{2}{U}, {T}: Look at the top four cards of your library. You may reveal a noncreature, nonland card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

Krakens, Leviathans, Octopuses, and Serpents you control can't be blocked except by Krakens, Leviathans, Octopuses, and Serpents.

Look at the top six cards of your library. You may reveal an instant or sorcery card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Silundi Isle enters the battlefield tapped.

{T}: Add {U}.

{2}{U}: Adapt 2. (If this creature has no +1/+1 counters on it, put two +1/+1 counters on it.)

{6}{U}: Monstrosity 4. (If this creature isn't monstrous, put four +1/+1 counters on it and it becomes monstrous.)

As long as Skittering Crustacean is monstrous, it has hexproof. (It can't be the target of spells or abilities your opponents control.)

Kicker {1}{U} (You may pay an additional {1}{U} as you cast this spell.)

When Slinn Voda, the Rising Deep enters the battlefield, if it was kicked, return all creatures to their owners' hands except for Merfolk, Krakens, Leviathans, Octopuses, and Serpents.

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

{T}: Add {C}{C}.

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.

When Solemn Simulacrum dies, you may draw a card.

Return target nontoken creature to its owner's hand. The Ring tempts you.

Whenever a Kraken, Leviathan, Octopus, or Serpent you control deals combat damage to a player, create a 9/9 blue Kraken creature token.

When Specimen Collector enters the battlefield, create a 1/1 green Squirrel creature token and a 0/3 blue Crab creature token.

When Specimen Collector dies, create a token that's a copy of target token you control.

Return each creature your opponents control with toughness X or less to its owner's hand, where X is the number of Islands you control.

Foretell {1}{U}{U} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control.)

Equip {1}

Equipped creature gets +2/+2 and has protection from red and from blue.

Whenever equipped creature deals combat damage to a player, Sword of Fire and Ice deals 2 damage to any target and you draw a card.

Equip {2}

Equipped creature gets +2/+2 and has protection from green and from white.

Whenever equipped creature deals combat damage to a player, exile up to one target creature you own, then search your library for a basic land card. Put both cards onto the battlefield under your control, then shuffle.

Equip {2}

Equipped creature gets +2/+2 and has protection from black and from red.

Whenever equipped creature deals combat damage to a player, destroy up to one target planeswalker and up to one target artifact.

Equip {2}

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}

{T}: Add {C}.

{2}, {T}: You may put a basic land card from your hand onto the battlefield tapped.

Bestow {5}{U} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Whenever Thassa's Emissary or enchanted creature deals combat damage to a player, draw a card.

Enchanted creature gets +3/+3.

{3}, {T}: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.

At the beginning of your end step, if you control seven or more lands, transform Thaumatic Compass.

(Transforms from Thaumatic Compass.)

{T}: Add {C}.

{T}: Untap target attacking creature an opponent controls and remove it from combat.

Draw three cards. Then discard two cards unless you discard a basic land card.

As Titan of Littjara enters the battlefield, choose a creature type.

Titan of Littjara is the chosen type in addition to its other types.

Whenever Titan of Littjara enters the battlefield or attacks, you may draw a card for each other creature you control that shares a creature type with it. If you do, discard a card.

Tolaria West enters the battlefield tapped.

{T}: Add {U}.

Transmute {1}{U}{U} ({1}{U}{U}, Discard this card: Search your library for a card with mana value 0, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)

{1}, {T}: Scry 1. Put a landmark counter on Treasure Map. Then if there are three or more landmark counters on it, remove those counters, transform Treasure Map, and create three Treasure tokens. (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")

(Transforms from Treasure Map.)

{T}: Add {C}.

{T}, Sacrifice a Treasure: Draw a card.

Changeling (This card is every creature type.)

{1}{U}: Switch Turtleshell Changeling's power and toughness until end of turn.

Switch target creature's power and toughness until end of turn.

Draw a card.

{T}: Add {C}.

{2}, {T}: Target legendary creature becomes a God in addition to its other types. Put a +1/+1 counter on it.

{4}, {T}, Sacrifice Tyrite Sanctum: Put an indestructible counter on target God.

As Urza's Incubator enters the battlefield, choose a creature type.

Creature spells of the chosen type cost {2} less to cast.

(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.

As Vanquisher's Banner enters the battlefield, choose a creature type.

Creatures you control of the chosen type get +1/+1.

Whenever you cast a creature spell of the chosen type, draw a card.

Emerge {6}{U} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.)

When you cast this spell, you may return target instant or sorcery card from your graveyard to your hand.

{T}: Add {C}.

{3}, {T}, Pay life equal to the number of colors in your commanders' color identity: Draw a card.

{2}, {T}, Sacrifice Wayfarer's Bauble: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Return all creatures to their owners' hands except for Krakens, Leviathans, Octopuses, and Serpents.

{T}: Add {C}.

{2}, {T}: Target commander gains lifelink until end of turn.

Flying

As long as Wonder is in your graveyard and you control an Island, creatures you control have flying.