Kolrem, Deep-Soul Harvester

When Kolrem, Deep-Soul Harvester becomes
tapped, you may attach an Aura or Equipment
card from your hand onto it without paying it's
mana cost. Return that permanent to your hand
at the end of this turn.
{u}{g}: Return a noncreature permanent you
control to it's owner's hand.
{t}: Put a +1/+1 counter onto Kolrem.