Quick thoughts about Exodia. My early thought process was that it would take multiple rounds to take him out because you would have to deliver a hit for each soul he absorbed plus one for him. Basically, each time Exodia successfully kills he gets a BPV. My theory for him has also been that he would need to kill two red and two green without losing a life to win.
Exodia History:
N1: Exodia Takes out Val 1.0, Mystical Elf/Garbador (+1 life)
N2: Exodia Kills DivaSmurf, Time Magician/Marowak (+1 life)
D3: Psycho Shot during gun game, survives (-1 life)
D3: Psycho kill attempt due to most use of the word "scum," survives (-1 life)
-----If my theory is correct, a kill attempt on Psycho at this point would have succeeded
N3: Exodia takes out Claws, Emrakul/Gabumon (+1 life)
N4: Exodia tried to kill Listo, Seto Kaiba/Blue Eyes Ultimate Dragon but Oko took him out first (+0 life)
N5: Exodia kills Llettuce, Blue Eyes Toon Dragon/Pikachu (+1 life)
If my above theory is correct, then its still possible for Exodia to meet their wincon by successfully killing one more town person and one more scum. It also means that it will take at least 3 kill attempts to take out Exodia (assuming no additional successful kills in the interim).