0-0-0

Partner with BT-1 (When this creature enters
the battlefield, target player may search their library for BT-1 and put it in their hand.)
Creatures your opponents control get -1/-1 for each +1/+1 counter on 0-0-0.
"Hello. I'm triple zero and I'm looking forward IMMENSELY to torturing you today."
- 0 -0 -0