Miriam, Shardbinder

Vigilance, host, bloodletting 2 (If you lost 2 or
more life this turn or if 2 or more creatures died this
turn, this creature enters the battlefield with two +1/+1 counters on it.)
Whenever Miriam attacks, you may place a host counter on target creature and tap it. (This
creature has all activated abilities of creatures with host counters on them.)