The proliferate + draw combination is incredibly powerful, but he doesnt just win out in terms of sheer power
Looking at Hiram Flaversham Toymaker and the Pawpsicle/Fortisphere combination, it allows that same card draw advantage in a color not designed for the mechanic, The real problem here though, is that your opponent usually has no answer to the 6 Willpower Hiram this early in the game, or no way to remove items that early before the Hiram combo is pulled off and your opponent has a three card advantage against you by turn four
(2025-10-02) To airbend one or more permanents and/or spells means to exile each of those objects
cards are also taken into account for each card to get their final Power total
And, clearly, you'll lose if your opponent draws all six Prize Cards first, you run out of Pokemon to assign as Active, or you run out of cards to draw