Sealing Wand

Enchantment creatures you control get +1/+1.
{1}, {t}: Exile target tapped creature. Activate this
ability only any time you could cast a sorcery.
{x}, {t}: Return target creature exiled with Sealing
Wand with converted mana cost X or less to the
battlefield under your control. It gains haste and
"At the beginning of the next end step, sacrifice
this creature."