Mine would have to be Reptile from Mortal Kombat. He is one of the most unrecognized characters in the MK universe even though he can:
1. Shoot acid out of his mouth
2. Make a warp ball that sends your body to him
3. Turn invisible
4. Use his tongue to rip limbs off your body.
I could list more, but that would be too much.
"Thats impossible"-Superman