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If the number is even, until end of turn, red creatures get -1/-1 and if a player taps a Mountain for mana, that Mountain produces colorless mana instead of any other type

The answer was pretty useful

This item card does have its uses in blocking out your opponent from putting in new, useful Pokemon on the bench, but that's not a good enough reason to run this card instead of a better one in your deck

For instance, is it crazy to sideboard or even maindeck Force of Virtue in a Humans deck

Nintendos beloved Pokmon trading card franchise has finally arrived on mobile devices, allowing players to open Booster Packs, create their own decks, and battle other players online