Legendary Creature — Vampire Warlock
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.”
1/1
Lisette, Dean of the Root {2}{G}{G} 
Legendary Creature — Human Druid
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.