User blog comment:JWarrior89/Season 3 Episode 5: The Arbiter vs Marcus Fenix/@comment-4098900-20120624000336

Arbiter, he's already extremely experienced and intelligent. But what really wins it is the combination of the armor and energy sword. He'll just pull himself to Fenix with the energy sword and stab him, in the time Fenix will have to shoot back the Arbiter's armor will save him. So the arbiter wins.