Izzet Chemister

Two activated abilities that only pay off if you feed the first one patiently, over multiple turns, before cashing the whole pile at once. The exile clause is a slow storage engine: a red-mana tap each turn that banks one instant or sorcery from the graveyard onto this creature, hoarding rather than casting. The sacrifice ability is the detonation, releasing any number of the cards stored this way to be cast for free, in a single burst. That two-step structure is what separates it from a straightforward flashback outlet: nothing happens the turn a spell hits the yard, and the payoff scales with how long the Chemister survives and how many turns you can afford to spend charging it. Haste on a 1/3 body is a curious inclusion, since the creature does nothing offensive; the intent is to let it tap the turn it lands and begin loading immediately rather than waiting a full cycle. The obvious tension is fragility: a single removal spell before you ever fire it wastes every turn of setup, so the card wants a graveyard already stocked and a fast window to cash out. It is a design that trades the reliability of one-shot recursion for the ceiling of a delayed, explosive dump, asking whether you can protect a defenseless goblin long enough to make the stockpile worth it.