Diogo, Democratic Loather

Storm
Bargain (You may sacrifice an artifact, enchantment,
or token as you cast this spell.)
Exile target card that’s an instant or sorcery
from your graveyard. For each card exiled this
way, copy it, and you may cast the copy without
paying its mana cost.
If Diogo, Democratic Loather was bargained,
it deals 2 damage to target creature or player.
Diogo, Democratic Loather can be your
commander.