pokemon bandit ring booster box Opening Opening A Pokemon Bandit Ring

Some cards seem like they should be staples i n EDH, and yet never quite catch on

Is this a ban-worthy break

Shaymin VSTAR (14/172 - Rare) VSTAR Power - Ability: Star Bloom - During your turn, you may heal 120 damage from each of your Benched Grass Pokemon Charizard VSTAR (18/172 - Rare) VSTAR Power - Attack: Star Blaze - 3x Fire Energy, 1x Colorless Energy - 320 Damage - Discard 2 Energy from this Pokemon Whimsicott VSTAR (65/172 - Rare) VSTAR Power - Attack: Fluffball Star - 1x Psychic Energy - This attack does 60 damage to 1 of your opponent's Pokemon for each Energy attached to this Pokemon

This card, despite what you might expect, is actually a Green instant that costs one mana