Tim, The Untamed Flame

Spells in your graveyard have flashback. The flashback cost is equal to the spells mana cost.

Whenever you cast a spell from your graveyard, Tim deals
3 damage to any opponent, they gain a burn counter (On that players upkeep, they take damage equal to their amount of burn counters, then remove all burn counters.)

If a spell you control would deal damage to an opponent, they gain a burn counter.

"I cast FIREBALLLLL"