Evoke
Evoke is a keyword ability that allows a player to play an alternate cost for a creature spell that possesses this ability; however, if the evoke cost is paid, the creature is sacrificed when it comes into play. It is confirmed that all creatures in Lorwyn with evoke — the set in which the ability was introduced — have a "comes-into-play" ability.[1]
Frank Karsten wrote of evoke:
“ | Evoke is a new Lorwyn mechanic that represents an alternative cost. In short, it allows you to play the spell for its evoke cost rather than paying its mana cost, but if you do that, you have to sacrifice it when it comes into play. Now why would you do that? Each Lorwyn creature with evoke has a come-in-play ability. So evoke lets you pay a cheaper cost to just get the creature's comes-into-play ability. You can read the more detailed and more boring rules notes in the box.[1] | ” |
From the Comprehensive Rules
- 502.74. Evoke
- 502.74a Evoke represents two abilities: a static ability that functions in any zone from which the card can be played, and a triggered ability that functions in play. "Evoke [cost]" means "You may play this card by paying [cost] rather than paying its mana cost" and "When this permanent comes into play, if its evoke cost was paid, its controller sacrifices it." Paying a card's evoke cost follows the rules for paying alternative costs in rules 409.1b and 409.1fh.
- When you play a spell for its evoke cost, you really are playing the spell—you're just paying a different cost. The spell can be countered as normal. Effects that prevent you from playing a spell also prevent you from playing the spell with evoke.
- Playing a creature by paying its evoke cost will result in two comes-into-play abilities: The sacrifice ability from evoke, and whatever other ability the creature has. The creature's controller chooses in what order to put them on the stack. Both abilities can be responded to as normal.
- 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.
- 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.
- When you play a spell by paying its evoke cost, its mana cost doesn't change. You just pay the evoke cost instead.
- Effects that cause you to pay more or less for 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.
- 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).
- If you're playing a spell "without paying its mana cost," you can't use its evoke ability. (Then again, you probably wouldn't want to.)
- Each Lorwyn creature with evoke has a comes-into-play ability. That means paying the normal cost gets you both the ability and the creature, while paying the evoke cost just gets you the ability.