valentin, dean of the vein menace, lifelink if a nontoken creature an opponent controls would die, exile it instead. when you do, you may pay 2. if you do, create a 1/1 black and green pest creature token with "when this creature dies, you gain 1 life." lisette, dean of the root whenever you gain life, you may pay 1. if you do, put a +1/+1 counter on each creature you control and those creatures gain trample until end of turn.