Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard. You may play it without paying its mana cost for as long as it remains exiled. (If it has X in its mana cost, X is 0.)
Whenever Centaur Rootcaster deals combat damage to a player, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.
When Wormfang Turtle enters, exile a land you control.When Wormfang Turtle leaves the battlefield, return the exiled card to the battlefield under its owner's control.
Enchant creatureEnchanted creature gets +2/-1.When enchanted creature dies, choose a creature at random Infectious Rage can enchant. Return Infectious Rage to the battlefield attached to that creature.
FlyingWhenever Treacherous Vampire attacks or blocks, sacrifice it unless you exile a card from your graveyard.Threshold — As long as seven or more cards are in your graveyard, Treacherous Vampire gets +2/+2 and has "When Treacherous Vampire dies, you lose 6 life."
Create two 1/1 white Bird creature tokens with flying.Flashback—Tap three untapped white creatures you control. (You may cast this card from your graveyard for its flashback cost. Then exile it.)
Threshold — As long as seven or more cards are in your graveyard, Treacherous Werewolf gets +2/+2 and has "When Treacherous Werewolf dies, you lose 4 life."
When Wormfang Newt enters, exile a land you control.When Wormfang Newt leaves the battlefield, return the exiled card to the battlefield under its owner's control.