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.