First omnimek design! MAKO! It's a mek that uses hydrokinetics to shape and move through water, acting as an assassin type character that can instantly kill a target of any health with a long cooldown by forcing them into the depths with Mako.
Weapon: Fins
Melee high damage, low attack speed weapons that hit anything in a cone in front of MAKO. The alt-fire accelerates the water molecules, causing an AoE splash in front of MAKO and disabling the fins until the regen.
Ability 1: Dive
Mako creates a pool underneath him, descends into the waters, and swims underground rapidly and freely, reemerging after the duration ends. If an enemy is nearby MAKO when it emerges, MAKO will execute the target by pulling them into the water.
Ability 2: Into the Deep
MAKO darts forward a short distance in a wave of water, forming hydrokinetic jaws that will pin a target. If a target is successfully pinned, the jaws will send the target into the ground and kill them.(3 charges, high cooldown)
Ability 3: Tsunami
MAKO transforms into a large mass of water, knocking back any enemies hit. Upon a second activation, all enemies being carried by the wave smashed into the ground, dealing high damage and leaving surviving enemies knocked down.
This will be the first of many mek concepts and designs. I know water and mechs are a weird combo but I liked the idea of a shark-style execution, diving into the water and accelerating up to get an instant kill. The design is extremely unorthodox for anything sci-fi but I think it came out pretty well.