Gift of Magecraft

Enchant creature you control, you gain 1 life.
Enchanted creature has hexproof and
"Magecraft — Whenever you cast or copy an
instant or sorcery spell, creatures you control
have hexproof and get +1/+2 until end of turn."
Sacrifice Gift of Magecraft: You gain 4 life.
A gift; it could be dangerous; it could be powerful, but
would you like a gift? As long as it's powerful.