Miryano of the Silver Tempest

When Miryano enters the battlefield, you may
attach target Equipment you control to it.
{1}, Exile target Equipment attached to Miryano:
Choose a kind of counter that Miryano doesn't
have on it from among first strike, deathtouch,
ward {1}, lifelink, menace, vigilance, and +1/+1.
Put a counter of that kind on Miryano. Return
the exiled Equipment to the battlefield at the
beginning of the next end step. You may attach
it to Miryano if able.