Dan Heng, Imbibitor Lunae

Flying
Whenever you cast an instant spell that targets
only one creature, you may pay {u}{r}. If you do,
copy that spell. You may choose new targets for
the copy.
Whenever you cast a sorcery spell with mana value
less than 6, you may pay {u}{u}{r}{r}. If you do, copy
that spell. You may choose new targets for the copy.