From The Bakugan Wiki
Pyruhammer is a Baku-Gear that appears in Bakugan: Armored Alliance.
Pyruhammer is a glowing red hammer with green highlights and a yellow handle.
Bakugan: Armored Alliance
Whilst initially said to be Cyloid's gear by Ventus Knight and appearing with Cycloid on the card Pyrustormer, this gear does not appear in Bakugan: Armored Alliance, instead being replaced with the Wrecking Ball.
Pyruhammer did not appear in the physical game.
Trading Card Game
Pyruhammer on Giant Inferno
Pyruhammer on Pyruhammer
Pyruhammer with Pyrus Cyloid on Pyrustormer
Secrets of the Geogan
Pyruhammer with Ventus Viperagon on Darkus Treasures