When Uro enters, sacrifice it unless it escaped.Whenever Uro enters or attacks, you gain 3 life and draw a card, then you may put a land card from your hand onto the battlefield.Escape—, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)
Flying, vigilance, deathtouch, lifelinkAt the beginning of your end step, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
Changeling (This card is every creature type.)As Morophon enters, choose a creature type.Spells of the chosen type you cast cost less to cast. This effect reduces only the amount of colored mana you pay.Other creatures you control of the chosen type get +1/+1.
FlyingWhenever Scourge of Valkas or another Dragon you control enters, it deals X damage to any target, where X is the number of Dragons you control.: Scourge of Valkas gets +1/+0 until end of turn.
Trample, infect, indestructibleIf Blightsteel Colossus would be put into a graveyard from anywhere, reveal Blightsteel Colossus and shuffle it into its owner's library instead.
When Avenger of Zendikar enters, create a 0/1 green Plant creature token for each land you control.Landfall — Whenever a land you control enters, you may put a +1/+1 counter on each Plant creature you control.
: Search your library for a Sliver card, reveal that card, put it into your hand, then shuffle.: Gain control of target Sliver. (This effect lasts indefinitely.)
Whenever a Dragon you control enters, put a gold counter on Dragon's Hoard., Remove a gold counter from Dragon's Hoard: Draw a card.: Add one mana of any color.
Whenever a Warrior attacks, you may have its controller create a 1/1 white Warrior creature token that's tapped and attacking.: Untap all attacking creatures. They gain trample, lifelink, and haste until end of turn. After this phase, there is an additional combat phase. Activate only during combat.
Menace, hasteBoast — Sacrifice another creature or artifact: This creature deals damage equal to 2 plus the sacrificed permanent's mana value to any target. (Activate only if this creature attacked this turn and only once each turn.)
At the beginning of your upkeep, you may return target enchantment card from your graveyard to the battlefield.As long as you control five or more enchantments, each other non-Aura enchantment you control is a creature in addition to its other types and has base power and base toughness each equal to its mana value.
FlyingWhenever Korvold enters or attacks, sacrifice another permanent.Whenever you sacrifice a permanent, put a +1/+1 counter on Korvold and draw a card.
, Sacrifice Fabled Passage: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle. Then if you control four or more lands, untap that land.
, Sacrifice Fabled Passage: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle. Then if you control four or more lands, untap that land.
Whenever The Celestial Toymaker attacks, look at the top three cards of your library. Exile any number of them in a face-down pile and the rest in a face-up pile. Defending player chooses one of those piles. Put that pile into your hand.At the beginning of each end step, each opponent loses 2 life for each spell or ability that caused one or more players...
Lifelink (Damage dealt by this creature also causes you to gain that much life.)As long as you have 30 or more life, Serra Ascendant gets +5/+5 and has flying.
Deathtouch, lifelinkBarrowgoyf's power is equal to the number of card types among cards in all graveyards and its toughness is equal to that number plus 1.Whenever this creature deals combat damage to a player, you may mill that many cards. If you do, you may put a creature card from among them into your hand.
Search your library and/or graveyard for a creature card with mana value X or less and put it onto the battlefield. If you search your library this way, shuffle. If X is 10 or more, creatures you control get +X/+X and gain haste until end of turn.
IndestructibleAs long as your devotion to red and white is less than seven, Iroas isn't a creature.Creatures you control have menace.Prevent all damage that would be dealt to attacking creatures you control.
Whenever The Fifteenth Doctor enters or attacks, mill three cards. You may put an artifact card with mana value 2 or 3 from among them into your hand.The first nonartifact spell you cast each turn has improvise. (Your artifacts can help cast that spell. Each artifact you tap after you're done activating mana abilities pays for .)
Whenever The Fifteenth Doctor enters or attacks, mill three cards. You may put an artifact card with mana value 2 or 3 from among them into your hand.The first nonartifact spell you cast each turn has improvise. (Your artifacts can help cast that spell. Each artifact you tap after you're done activating mana abilities pays for .)
You may have Sakashima the Impostor enter as a copy of any creature on the battlefield, except its name is Sakashima the Impostor, it's legendary in addition to its other types, and it has ": Return this creature to its owner's hand at the beginning of the next end step."
