pokemon black white card list and A look at the Pokémon that will be appearing in Pokémon TCG Black & White

This MTG set's Room cards all have two halves, described as 'doors'

Maybe flat out denial is more into whites ballpark for an effect like this

Set Information: Alpha The Limited Edition Alpha was released on August 5, 1993

In Modern, you want to play this effect at Instant speed even if you have to settle for +3/+3 in that other format

Pay particularly close attention to the commons and uncommons in a set

I'm not saying this wouldn't be a bad play by any means, only that the card is held back because it might be difficult to capitalize on its upsides, thus leaving us with a slightly overpriced version of this effect