From The Bakugan Wiki
InstaBrawl is a Tag-Word Ability that was introduced in Bakugan: Armored Alliance. It is unique to the Bakugan Elite Hero Cards from the Armored Alliance Brawler Packs, and their reprints in Secrets of the Geogan.
Cards with InstaBrawl allow the player to instantly play a card, at an Energy cost. At the end of the turn, a card played through the InstaBrawl effect is destroyed.
Secrets of the Geogan