Chakren, Heretical Exile

First strike
Magecraft —Whenever you cast or copy an
instant or sorcery spell, draw a card, then discard
a card.
Whenever Chakren, Heretical Exile deals combat
damage to a player, each instant and sorcery spell
in your graveyard gains flashback until end of
turn. The flashback cost is equal to that cards
mana cost.