Plasma Warhead Grenade HC (GGO/SE50-E36H HC) SAO Alternative–Gun Gale Online–2 Premium Booster Card details

Brainstorm If you do not have an "Avatar" or "Net" character, this card cannot be played from your hand.
Choose 1 of your characters, and that character gets +2000 power until end of turn.
All players flip over 3 cards from the top of their decks, and put them into their waiting rooms. If the total power of the characters put into your waiting room by this effect is equal to or higher than the total power of the characters put into your opponent's waiting room by this effect, choose up to 2 "Avatar" or "Net" characters in your waiting room, and return them to your hand.