The Arc Blade is indeed a devastating attack, but it is one of the harder Supers to use. And, unlike many supers, it's not uncommon to end it with zero kills. Nova Bomb and Fist of Havoc are instantaneous. You fire them, and it's over. With FoH, everyone around you dies. With NB, everything where you aim the shot dies. But hitting multiple targets can be problematic, because if 2+ guardians focus their fire on you, you could easily die before you can engage it. I don't have a Warlock, but my Titan's PvP FoH performance is probably something like this: 0 Kills - 5% 1 Kill - 75% 2 Kills - 20% 3+ Kills - Negligible Estimated Average - 1.15 kills/application Arc Blade and Golden Gun are continuous. You have to activate them before you reach the enemy, or risk getting obliterated during the initial animation. And if you die while activating your FoH, your Super meter stays charged. Die while activating Arc Blade, and you respawn with it at zero. So to use Arc Blade, you have to fire it up when your radar goes red. And you never know if the enemy will slip away, or if your teammate will kill him. My estimated Arc Blade stats are as follows: 0 Kills - 20% 1 Kill - 45% 2 Kills - 20% 3+ Kills - 15% Estimated Average - 1.4 kills/application So, I average more carnage with arc blade, BUT I'm four times more likely to come up completely dry with it.