Polarclaw

Polarclaw is polar bear-like Decepticon/Terrorcon in Transformers: Robots in Disguise.

History
Polarclaw was one of the many Decepticons imprisoned aboard the Alchemor. When the ship crash-landed on Earth by Megatronus, he was freed from his stasis pod. He made his way to the Arctic Circle and he hid up in a mountain cave near a research base. Bumblebee's team picked up his signal, and Optimus Prime, Sideswipe, Drift, Windblade, Slipstream, and Jetstorm left to capture him. Polarclaw threw huge chunks of ice on the autobots from above as they climbed up the mountain. Optimus tried provide cover, but Polarclaw managed to hit him while he was distracted and almost made Optimus fall off the mountain. Windblade transformed into her jet mode and flew up to Polarclaw where she stopped the him from throwing more ice which made him retreat back in his cave.

Polarclaw used his sonic roar to start an avalanche, but the Autobots survived. They scanned for a camouflage color to avoid being detected by Polarclaw. They made their way to his cave while he was preparing for hibernation. The Autobots observed him, but Sideswipe grew impatient. He attempted to move in on Polarclaw, but his squeaky wheel alerted the Decepticon and then headed out the back exit of his cave.