There are a lot of 1/1s running about in Dragonstorm, and this can take out two at once
You could also throw partner it up with a red Background enchantment and play Rakdos (red/black) sacrifice strategies, such as stealing an opponent's big creature with an Act of Treason or Besmirch before sacrificing it to Shadowheart
For two red mana at instant speed, you can destroy any permanent an opponent controls, which is incredibly potent and flexible pinpoint removal
If you apply Pokey's third ability as a replacement effect to rolling a d20, other than the original effect that called for the d20 roll, all other game effects, including replacement effects and triggered abilities, recognize that you flipped a coin rather than rolled a d20
Dont forget to get even more treasure tokens with cards like Anointed Procession or Mondrak, Glory Dominus
On the other hand, this guy does get exponentially larger each turn, because it puts counters on itself