Aqua Titan ver.1

He has a harpoon thing, and a turbine on his back. This can be moved around so he can spray water in front of him, use it to propel himself through the water or, on land, blast a jet of water downwards to levitate slightly (so basically, he has the water jet from Mario Sunshine)

has said this is what he would look like if he were a Toa, so he's forcing me to call this Toa Osk. No worries, Osk is long dismantled, so it won't change the storyline

Bionicle (c) Lego
Everything else (c) Me