Meu, Paragon of Vengance

Whenever Meu becomes the target of a spell or ability an opponent controls, exile that spell or ability, then copy it. You may choose new targets for the copy.
Whenever this creature is dealt lethal damage by a creature an opponent controls, exile that creature, then return this card from your graveyard to the battlefield as a copy of that card except it's legendary in addition to its other types, and it gains Meu's abilities.