Fathom

Profile
"This is clearly from an ancient civilization."

An exceedingly social mech built for marine salvage, with a keen interest in higher education, particularly that involving archaeology. While he has many other academic pursuits and enough energy to keep up with them, he strives to be an Autobot first, archaeologist second, and student of many doctrines third. Fathom is a triplechanger; he notably transforms into a seafaring mechanimal resembling a Terran dolphin, equipped with powerful SONAR capabilities that he can weaponize, and his land mode is a type of tricar with mounted concussion rockets. Finely tuned audial receptors allow him to "see" sound and root out hidden enemies. These same audials work against him when dealing with sonic attacks, however, and while he's highly resistant to water-based corrosion and acids, his armor is particularly vulnerable to electrical attacks. Fathom is very much a team player and does not fare so well on solo missions.

History
Fathom was built into the Autobot ranks fairly recently (about a half a year ago, ICly), created with both a land mode and an aquatic mode to assist in salvaging downed surface vessels and submarines on Cybertron. Naturally he became interested in the artifacts that their ongoing war had scattered on the seabeds. Layers of Cybertronian history that the archives forgot, all buried beneath the waves, waiting to be rediscovered... Fathom sought the details of every chipped propeller he found, every coil of wires, every mechanoid skull. Eventually he became involved in several of Cybertron's universities, albeit through remote classes they offered, all the while serving in Autobot operations.

As an Autobot, he's trained in combat like any other recruit and can hold his own if he needs to. His fighting style leans towards hand-to-hand, as he prefers to use his twin jamadhar katars - improved replicas of a Cybertronian pair he'd found in the Sea of Mercury. Another replica similar to a chakram serves as his ranged weapon, a circular blade that returns to its thrower.