Oxide shark
The poisonous oxide shark is the deadliest predator in Cybertron's Rust Sea. Travelling in schools (or shivers), they don't take kindly to intruders to their territory. A usual response involves one Oxide Shark turning into their torpedo mode and blowing the offender out of the water. Their bright green coloration inspired the Decepticon Devastator's alternate color scheme.[1]
Fiction
Beast Wars: Uprising
After one Game at Dodecahex ended with a contestant trying to flee by the river, the Builder Override had the nearby river filled with alloygators and oxide sharks. Afterward, any Game set there would inevitably feature some poor sap with an aquatic alt-mode, so the audience could watch the sharks torpedo them. Broken Windshields
At Megatron's urging, Overbite attempted to scan an oxide shark for a new alternate mode. The experimental beast mode process was only partially successful, leaving Overbite a malformed mixture of shark and submarine. Not All Megatrons
Several aquatic Resistance troopers participating in the battle for the Yuss Straits had oxide shark beast modes. Derailment
