Invala, Delirious Queen

Deathtouch, Lifelink, Trample
When Invala enters the battlefield, mill cards
from your library equal to the number of
creatures you control.
Delirium - At the beginning of your upkeep,
if there are four or more card types in your graveyard, you gain X life, each opponent loses
X life, and put X +1/+1 counters on Invala,
where X is the number of creature cards in your graveyard.