Ravnica Allegiance

({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.

{T}, Sacrifice two other creatures: Any number of target players each lose 2 life and sacrifice a creature. You add {B}{B} and draw a card.

Gutterbones enters the battlefield tapped. {1}{B}: Return Gutterbones from your graveyard to your hand. Activate only during your turn and only if ...

({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.

{T}: Add one mana of any type that a land you control could produce. If Incubation Druid has a +1/+1 counter on it, add three mana of that type ins...

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}, Sacrif...

Whenever an opponent casts a noncreature spell, Cindervines deals 1 damage to that player. {1}, Sacrifice Cindervines: Destroy target artifact or ...

Return target creature card with mana value 3 or less from your graveyard to the battlefield.

Counter target activated or triggered ability. (Mana abilities can't be targeted.)

Activated abilities of creatures you control cost {2} less to activate. This effect can't reduce the mana in that cost to less than one mana. {T}:...

({T}: Add {R} or {G}.) As Stomping Ground enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

Destroy all creatures. You gain life equal to the number of creatures you controlled that were destroyed this way.

Gain control of X target creatures and/or planeswalkers.

Whenever a creature an opponent controls becomes tapped, if it isn't being declared as an attacker, you may draw a card. {4}{U}: Tap target creatu...

Electrodominance deals X damage to any target. You may cast a spell with mana value X or less from your hand without paying its mana cost.

During your turn, spells your opponents cast cost {1} more to cast and abilities your opponents activate cost {1} more to activate unless they're m...

Destroy target artifact, creature, or planeswalker.

({T}: Add {B} or {R}.) As Blood Crypt enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

When Deputy of Detention enters the battlefield, exile target nonland permanent an opponent controls and all other nonland permanents that player c...

{1}{U}: Adapt 1. (If this creature has no +1/+1 counters on it, put a +1/+1 counter on it.) Whenever one or more +1/+1 counters are put on Benthic ...

Whenever a nontoken creature enters the battlefield under your control, flip a coin until you lose a flip. For each flip you won, create a token th...

Counter target spell. You gain 3 life.

If a creature dying causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time. Creature tokens you...

When Plaza of Harmony enters the battlefield, if you control two or more Gates, you gain 3 life. {T}: Add {C}. {T}: Add one mana of any type that a...