Doctor Arkeville, Mad Scientis

Proxy: Reyhan, Last of the Abzan
Doctor Arkeville enters the battlefield with three +1/+1 counters on it.
Whenever a creature you control dies or is put into the command zone, if it had one or more +1/+1 counters on it, you may put that many +1/+1 counters on target creature.
Partner
—
"You promised me a guinea pig, Megatron. I need one for my experiment!"