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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 cre...

Castle Ardenvale enters the battlefield tapped unless you control a Plains. {T}: Add {W}. {2}{W}{W}, {T}: Create a 1/1 white Human creature token.

{2}, {T}: Add {B} for each Swamp you control.

Boseiju, Who Shelters All enters the battlefield tapped. {T}, Pay 2 life: Add {C}. If that mana is spent on an instant or sorcery spell, that spell...

Bojuka Bog enters the battlefield tapped. When Bojuka Bog enters the battlefield, exile target player's graveyard. {T}: Add {B}.

{T}: Add {C}{C}. Ancient Tomb deals 2 damage to you.

Noncreature spells cost {1} more to cast.

Equipped creature gets +1/+1. Whenever equipped creature attacks, you may search your library for a basic land card, put it onto the battlefield ta...

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 ...

Equipped creature gets +1/+1 and has trample and lifelink. {1}: Permanents your opponents control lose hexproof and indestructible until end of tur...

Whenever you activate an ability, if it isn't a mana ability, you may pay {2}. If you do, copy that ability. You may choose new targets for the copy.

Whenever a creature you control leaves the battlefield, if it had counters on it, put those counters on The Ozolith. At the beginning of combat on ...

Creatures with power greater than the number of cards in your hand can't attack.

Create X 1/1 green Elf Warrior creature tokens, where X is the number of attacking creatures. Prevent all combat damage that would be dealt this tu...

Whenever a nonartifact permanent enters the battlefield under your control, you may return another permanent you control that shares a permanent ty...

This spell costs {X} less to cast, where X is the greatest power among creatures you control. {T}: Add {G}{G}. You gain 2 life. Whenever a nontoken...

Each land is a Forest in addition to its other land types.

Each land is a Forest in addition to its other land types.

{T}: Add {C}. {T}, Sacrifice Wasteland: Destroy target nonbasic land.

{T}: Add {C}. {T}, Sacrifice Wasteland: Destroy target nonbasic land.

Each land is a Swamp in addition to its other land types.

Each land is a Swamp in addition to its other land types.

{T}: Add {R}. {R}, {T}: Target legendary creature gains first strike until end of turn.

{T}: Add {R}. {R}, {T}: Target legendary creature gains first strike until end of turn.