Until this Pokémon leaves play, it gains an Ability that has the effect "The Weakness of each of your opponent's Pokémon's in play is now . (The amount of Weakness doesn't change.)" (You can't use more than 1 VSTAR Power in a game.)
This card was included as both a Regular card and a Secret Rainbow Rare in the Silver Tempest expansion, first released in the Japanese Paradigm Trigger expansion. Both prints feature artwork by PLANETA Mochizuki.
The Unown featured in this card's illustration spell out 'VSTAR' in a similar vein to the illustrations of the associated Unown V, originating in the same set.