Anafenza, Ancestor's Will

Whenever a creature you control with a +1/+1
counter on it dies, return that card to the battlefield under your control at the beginning of
the next end step.
Creatures you control with a +1/+1 counter have
all keywords and abilities that start with "when," "whenever," "at," or "if" of all other creatures
you control with a +1/+1 counter.