Seacon (Prime)

The Seacons were a special team of Decepticons adapted for underwater combat: six 'Cons under Snaptrap, able to combine into the dread gestalt Piranacon!

Then they went to Earth...

Fiction

Titan Magazines Prime comics

The Seacons landed at least ten years ago and something killed poor Snaptrap. Without him to control the gestalt, Piranacon became a mindless beast, sinking ships at random and trying to use their parts to repair himself(ves).

By accident, Miko, Raf, Jack, and Bumblebee came across the Seacons' lair and were able to take Piranacon down with old World War Two mines and a rockslide. Fury from the Deep

Trivia

• The kids learn who the Seacons are from the "Autobot Archive", which resembles this very wiki...

• Why did they combine when Snaptrap was dead? We dunno.