Well it's not about riding the lighting in my opinion, sure one charge doesn't hit every single hit, but of they can't move you get all this time to charge it up again and aim your charge to hit more enemies thus creating a scenario where you are just pick angles in which to explode upon a crowd. If you are getting one for damage, they all do the same damage sides the Acheron but if you want the status to do something Combuster is meh, I mean Glacuis freezes what feels like everything and you can sit right next to them and almost be like a kid at a candy shop picking what you like best and then charge attack again and again. And Voltedge is just funny to hit a clustered crowd with and then watching the shock surge through a crowd. Sure Combuster would get all the hits in more but it won't matter unless you are solo I think cause the enemies will have to much health to die in one charge regardless.

The sole reason I didn't pick the Combuster is that at FSC and hopefully soon to be stuff with the Crimson Order which is Gremlins is that the Fire won't be good enough in tier 3. Can't burn FSC enemies besides Trojans and if and when that Crimson Order stuff comes out, hopefully tier 3 they will be resistant to elemental damage so use your Acheron there. There was no utility out of it's fire for me in tier 3 where 5 star equipment shines.

End of Opinion.

"can't ride the lightning" could be a good thing. 1. you can continue regular attack immediately after charge 2. you and your party member could release the charge without chasing down monsters.

I think it comes down to what suits the rest of your loadout, personally. As an example, when I first started I went with Glacius because it fit nicely into my Shiver strategy (this was long before I reached FSC mind you, when my damage sucked, no useful gear and all I had was two swords and a shiver), letting me shiver everythin' then take out the sword and pick things off one by one without having to worry about unfreezin' everythin.

The only "real" benefit is that the Combuster is more likely to let mobs ride the full distance, but in FSC that comes at the cost of losing the bonus status effect. So if you're ignoring that, then look at the rest of your loadout and see what else might fit it. Are you walkin' in with VT or a shock gun? Combuster is probably better then. Do you have a lack of "aoe" weaponry and/or short radius swords? Glacius might be your friend, givin' some crowd control. Are you goin' in with Vortexes or a plan to funnel with guns? Voltedge could take advantage of the tight grouping.

The swords are pretty much the same, so it's just a matter of picking the one that fits nicest into your loadout and takes full advantage of the abilities it has to compliment the rest of your strategy the most efficiently.

Simple, apart from FSC Combuster has the most damage out of the three, and by far, fire hurt ennemies a lot. I've used both Glacius and Combustor in the past, and while it's cool to freeze ennemies with a sword, it's kinda useless. Someone will always break your freeze anyways. I can't speak for Voltedge, but shock is just meh, it does less damage then fire, and has very little crowd control.

Also, Combuster looks awesome.

Thing is, why use Combuster at all when Fang of Vog is basically the same thing, only better?

Well, i agree and disagree with glacius being redundant in FSC if there's a shiverer around.

Pro: in d 25 top and bottom right rooms, you can perma freeze almost all the zombies by spam charging, freeing up the shiverer to help elsewhere.
help freeze the mobs a bit when the shiv breaks, or the mobs that are out of the shiv,
freeze mobs that are secondary priority to the shiverer ,yet still dangerous (d27, right bottom corner slags, as the shiverer will be shiving the trojans)
perma freeze slag guards

Con: well, in smaller rooms where a single shiv can cover almost everything, meh, you can't do as much dmg.

note: when spam charging with a vanilla (no uv ) glacius, wait for half a second before releasing the charge. If you time it right, the freeze will break just before the blasts reaach them, dealing a much higher dps then just letting the charge go early.

It's pretty easy to get enemies to "ride the wave" on the Glacius charge (especially with the slower zombies now) - you just attack-cancel your charge. Anyone not already riding the wave get's another hit to the face and then gets forced to ride it - plus they'll be frozen at the end. I do this to charge loop all the way through FSC and it provides greats clumps of zombies for subsequent charge attacks.

EDIT: woo, jut took the necromancy off, I'm safe