Choose target spell, then flip a coin. If you win the flip, gain control of that spell and you may choose new targets for it. If you lose the flip, counter that spell.
Spymaster's Vault enters tapped unless you control a Swamp.: Add ., : Target creature you control connives X, where X is the number of creatures that died this turn. (Draw X cards, then discard X cards. Put a +1/+1 counter on that creature for each nonland card discarded this way.)
Flying, hexproof from activated and triggered abilitiesWhen Volatile Stormdrake enters, exchange control of Volatile Stormdrake and target creature an opponent controls. If you do, you get , then sacrifice that creature unless you pay an amount of equal to its mana value.
FlashStorm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies. Copies become tokens.)Enchant creatureEnchanted creature loses all abilities and is a blue Frog creature with base power and toughness 1/1.
You may sacrifice a nontoken green creature rather than pay this spell's mana cost.Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.
Archway of Innovation enters tapped unless you control an Island.: Add ., : The next spell you cast this turn has improvise. (Your artifacts can help cast that spell. Each artifact you tap after you're done activating mana abilities pays for .)
Monumental Henge enters tapped unless you control a Plains.: Add ., : Look at the top five cards of your library. You may reveal a historic card from among them and put it into your hand. Put the rest on the bottom of your library in a random order. (Artifacts, legendaries, and Sagas are historic.)
Flying, lifelinkWard—Discard a card.Whenever a modified creature you control attacks, double the number of each kind of counter on it. Then for each nontoken permanent attached to it, create a token that's a copy of that permanent attached to that creature.
Devoid (This card has no color.)TrampleAt the beginning of combat on your turn, target creature you control gains haste and gets +X/+0 until end of turn, where X is the number of Eldrazi you control.
