Donald Duck, Court Mage

Whenever you cast a historic spell, choose one
that has not been chosen:
• Fire!—Deal 2 damage to any target.
• Blizzard!—Put a stun counter on target nonland permanent.
• Thunder!—Deal 1 damage to any 3 different targets.
{bull} Aero!{line}Prevent the next 3 damage to target creature.
{bull} Cure!{line}Regenerate target creature.

When all the previous effects have been chosen, exile Donald Duck with 3 suspend counters on it.