Azalea, Infernal Warlock

Whenever you cast an instant or sorcery spell,
choose one that hasn't been chosen —
•You may tap or untap target permanent.
•Azalea, Infernal Warlock deals 3 damage to each opponent.
•Copy target instant or sorcery spell you control.
You may choose new targets for the copy.
{bull}Put Azalea on top of its owner's library.