Alzaket, Angel of the Hunt

Deathtouch, Flying, Double Strike.
Whenever Alzaket enters the battlefield or
attacks, you may Fight another target creature.
Whenever Alzaket becomes the target of a spell
or ability exile him then return him back to the
battlefield at the beginning of your next upkeep.
Alzaket was hired by the humans to hunt Innestra,
too bad he went insane with the chase.