瞬間
目標生物得-3/-3直到回合結束。你可以橫置任意數量由你操控且未橫置的吸血鬼生物。如果你如此作,則在這些吸血鬼上各放置一個+1/+1指示物。
You don't choose which untapped Vampire creatures you control to tap (if any) until Urge to Feed resolves.
If you cast Urge to Feed targeting an untapped Vampire creature you control with toughness 3, its toughness will be reduced to 0 by the -3/-3 effect. However, state-based actions aren't checked until the spell has finished resolving. You may then tap that Vampire and put a +1/+1 counter on it, raising its toughness to 1. It will remain on the battlefield.
If the targeted creature is an illegal target by the time Urge to Feed resolves, the entire spell doesn't resolve. You can't tap any Vampires.