Curse of Creativity

Enchant player
Whenever enchanted player casts a permanent
spell, that player sacrifices a permanent that
shares a card type with that spell, searches his or
her library for a card that shares a card type with
that spell and puts it onto the battlefield tapped,
then shuffles the spell into its owner's library.

"But not making characters is like ceasing to breathe!"
—Ceronis_C, the Overly Creative