Flash Conscription

Oracle Text

Untap target creature and gain control of it until end of turn. That creature gains haste until end of turn. If W was spent to cast Flash Conscription, the creature gains "Whenever this creature deals combat damage, you gain that much life" until end of turn.

Card Rulings

10/1/2005 If white mana was paid, the player who controls the creature when it deals combat damage will be the one who gains life.