The soonest Sin Prodder can start drawing you cards is turn 4, and an aggressive deck really isnt going to want the game to many more turns than that
In competitive formats, cards like Baral, Chief of Compliance, Goblin Electromancer, Birgi, God of Storytelling, or cost-reduction engines like Mizzix of the Izmagnus enable storm turns much earlier, while actual storm payoffs such as Grapeshot, Brain Freeze, or Tendrils of Agony win the game immediately without needing a 7-mana creature to survive
For starters, pair it with the new Eevee from Mega Rising that can evolve instantly, along with Sylveon EX, to draw cards rigorously
Frankly I think this card is excellent on its own, but paired with Killian for some extra advantages
You don't choose a target for Eden, Seat of the Sanctum's last ability at the time you activate it