While the dream scenario is to bounce your opponent's best spell along with their best permanent, there's almost no situation where Venser, Shaper Savant is bad, since in the worst case, you can always just run it out on your opponent's end step and bounce two of their lands to set back their development
Notably Doubling Season and Corpsejack Menace, while black gives you access to a wide range of sacrifice effects
While Clefairy is beloved by many, and the card art is lovely, it's not like this is an iconic Pokemon
The Mew card in Pokmon TCGP is the most difficult to acquire, as it requires players to gather all 150 of the other Kanto-region Pokmon
Adding in the must be blocked rider means this is all but guaranteed to take out a creature every turn if youre strategic
It also benefits from stuff like "Toon Mask" or "Toon Briefcase" but people would probably use it more with "Toon Table of Contents"