Squard

Squard was created when Malleo was trying to make an indestructible soldier for the Mahziis. The result was this.... thing. Squard can be killed extremely easily, but he respawns instantly. When Malleo showed Squard to Weegee, he called it an abomination (which it was) and burned it. However, it respawned. Weegee killed it again, but it respawned again. Weegee ordered a group of scientists to research a way to kill it permanently. They are still researching to this day, and have remained unsuccessful.