With CALIBURST by his side, HUFFER is just as inclined to grumble as he's ever been, but he's also faster, stronger, and smarter, which means the DECEPTICONS have a lot more to complain about than he does. Power up for the ultimate robot battles! Your HUFFER figure is already a virtually unstoppable opponent in his vehicle and robot modes. But his strength gets doubled when you factor in your CALIBURST figure and his four modes! Convert this Mini-Con ally figure to weapon accessories for him when he's in truck vehicle mode or Commander mode. Then, convert your CALIBURST figure into an armour accessory for your HUFFER figure's Power Up Mode! And the action doesn't stop there. With this Power Core interchangeable robot combination system, Mini-Cons and drone vehicles (sold separately) can attach to power up any Commander figure. Collect more packs and you can create tonnes of unique and fierce robot battler figure combinations!