Rowen, Lightning Duelist

Prowess
Whenever you cast an instant or sorcery spell,
Rowen, Lightning Duelist deals damage equal to
that card's mana value to target opponent.
Once per turn, you may cast an instant or
sorcery spell from your graveyard as if it had
flashback.
"But people only die on proper duels, you know, with
real wizards."—Rowen Lightning Duelist