As Cavern of Souls enters, choose a creature type.: Add .: 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.
As Cavern of Souls enters, choose a creature type.: Add .: 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.
Return target nonland permanent you don't control to its owner's hand.Overload (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")
FlashWhen Snapcaster Mage enters, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost. (You may cast that card from your graveyard for its flashback cost. Then exile it.)
Return target nonland permanent you don't control to its owner's hand.Overload (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")
+1: Each player discards a card.−2: Target player sacrifices a creature.−6: Separate all permanents target player controls into two piles. That player sacrifices all permanents in the pile of their choice.
HasteWhen Craterhoof Behemoth enters, creatures you control gain trample and get +X/+X until end of turn, where X is the number of creatures you control.
FlashWhen Snapcaster Mage enters, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost. (You may cast that card from your graveyard for its flashback cost. Then exile it.)
Take an extra turn after this one. Exile Temporal Mastery.Miracle (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.)
HasteWhen Craterhoof Behemoth enters, creatures you control gain trample and get +X/+X until end of turn, where X is the number of creatures you control.
Search your library for up to four cards with different names and reveal them. Target opponent chooses two of those cards. Put the chosen cards into your graveyard and the rest into your hand. Then shuffle.
You may have Phantasmal Image enter as a copy of any creature on the battlefield, except it's an Illusion in addition to its other types and it has "When this creature becomes the target of a spell or ability, sacrifice it."
+1: Each player discards a card.−2: Target player sacrifices a creature.−6: Separate all permanents target player controls into two piles. That player sacrifices all permanents in the pile of their choice.
Flying: Olivia Voldaren deals 1 damage to another target creature. That creature becomes a Vampire in addition to its other types. Put a +1/+1 counter on Olivia Voldaren.: Gain control of target Vampire for as long as you control Olivia Voldaren.
Each instant and sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost.Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)