Santa Clause, the Gift Giver

Creatures you control have gift a card (you
may promise an opponent a gift as you cast this spell.
If you do when it enters, they draw a card)
enchantment spells you cast have gift a
treasure (you may promise an opponent a gift as
you cast this spell. If you do when it enters, they create a treasure token)
whenever you give a gift create a treasure and
draw a card