Eidolon of Hera

Bestow {1}{w}{w} (This card is an aura until removed)
If bestowed, enchanted creature has these abilities otherwise held by Eidolon of Hera:
Choose artifact, creature, or enchantment.
If a non-token permanent of the chosen type enters play under your control and from your hand, add a +1/+1 counter to this creature.
If permanents leave the battlefield, exile them.
If Eidolon of Hera detaches, pay {3}{w}{w} or return her to your hand.