Crypt, Apex Alchemist

At the beginning of your upkeep, proliferate.
Whenever a creature an opponent controls with
a -1/-1 counter on it dies, draw a card.
Whenever you draw a card for the first time each
turn except for your first draw in each of
your draw steps, proliferate.
Thank you for volunteering to be a test subject!
Your remains will be sent to your next of kin.