Creature - Elemental 3/3, 2UU (4) When Slithermuse leaves play, choose an opponent. If that player has more cards in hand than you, draw cards equal to the difference. Evoke {3}{U} (You may play this spell for its evoke cost. If you do, it's sacrificed when it comes into play.)1
Illus. Steven Belledin
4/1/2008: Evoke doesn't change the timing of when you can play the creature that has it. If you could play that creature spell only when you could play a sorcery, the same is true for playing it with evoke.
4/1/2008: If a creature spell played with evoke changes controllers before it comes into play, it will still be sacrificed when it comes into play. Similarly, if a creature played with evoke changes controllers after it comes into play but before its sacrifice ability resolves, it will still be sacrificed. In both cases, the controller of the creature at the time it left play will control its leaves-play ability.
4/1/2008: When you play a spell by paying its evoke cost, its mana cost doesn't change. You just pay the evoke cost instead.
4/1/2008: Effects that cause you to pay more or less to play a spell will cause you to pay that much more or less while playing it for its evoke cost, too. That's because they affect the total cost of the spell, not its mana cost.
4/1/2008: Whether evoke's sacrifice ability triggers when the creature comes into play depends on whether the spell's controller chose to pay the evoke cost, not whether he or she actually paid it (if it was reduced or otherwise altered by another ability, for example).
4/1/2008: If you're playing a spell "without paying its mana cost," you can't use its evoke ability.
4/1/2008: You choose an opponent when the ability resolves. Once you determine how many more cards than you that player has, that number is locked in as the amount you'll draw.
Morningtide
(Rare)