Lavina, Corrupted Sage

When Lavina, Corrupted Sage enters the battlefield and at the beginning of your upkeep,
mill three cards.
Whenever one or more creature cards enter your
graveyard from your library, create a 1/1 black
Ooze token.
Whenever a creature you control dies, put a
+1/+1 counter on Lavinia, Corrupted Sage.