Slebetor Slug-man

Slebetor Slug-men are an aquatic species of monstrous humanoids which dwell deep in the Lake of Gnarl on planet Eternia, and are known for their ability to drain the life essence of others with their hands, which are shaped like giant suction pads.

Biology
Members of this species have green skin, large fangs, red eyes, and their hands and feet are shaped like suction pads. When they grab opponents with both hands, they can suck their foes' life force, thus draining them of their strength.