The deadly idea’s running through my mind, lets start.

Baraka- The cannibalistic fatality, Finish Him!
Baraka would open his mouth very wide to show his piercing teeth, with saliva dipping off the ends. He would walk over to his opponent with a sick smile upon his face. Unhinged jaw would be necessary to consume the whole body if wanted. He would cut up the body with his sward like arms into smaller sections, which make for an easy meal. He could now eat the arms, legs, torso, and the head. Fatality!

Kabal- The respirator fatality, Finish Him!
Kabal would slowly ease off his mask and inhale one last breath for this fatality. He would now make his way over to his opponent and place his mask on his or her face. Once in place the mask would consume all the breath left in the body. The mask would keep them alive long enough for Kabal to take the mask off. He would now take the mask off and the body would fall to the floor. Kabal would put his mask on again and inhale heavily to gain back his much needed oxygen.

P.S. I will post more if wanted or I have time.