Calix, Destiny’s Remorse

Calix, Destinys Remorse power and toughness are
each equal to half the number of enchantments
you control, rounded up.
{3},{t}, sacrifice an enchantment: choose one—
•Return target enchantment card in your graveyard with lesser mana value to the battlefield under your control
•Create a black and white Avatar enchantment creature token with power and toughness each equal to the number of enchantments you control.