Katherine, Last of the Abzan

Katherine, Last of the Abzan 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 can have two commanders if both
have partner.)