Does the extra heavy attack damage that Undaunted Infiltrator provides proc on every hit of a heavy attack channel?
I ask because it occurs to me that, if it did, you could put together a pretty effective lightning staff heavy attack build—especially if you put it alongside the Infallible Mage set, or maybe something easier to get like Queen’s Elegance or infused Torug’s Pact. Adding the Maelstrom staff to that could potentially make it even more effective. I think it would probably work best on a Dragonknight, in conjunction with Molten Armaments for the higher heavy attack damage. It would probably also work well with Warden, since Wardens have lots of passive damage bonuses you could slot on the bar you’re heavy attacking on, and they have really good healing synergy with this through Lotus Blossom. Maybe Sorcs as well. I realize there’s essentially no way it’d be competitive for single-target PvE DPS, but I think it could be very strong in PvP, and it would shred groups of mobs.
But I don’t want to bother farming the Undaunted Infiltrator set if this just won’t really work properly.
I theorycrafted a version of this on the UESP ESO Build Editor, and that website indicates to me that this would actually work pretty well, since Undaunted Infiltrator massively buffs the damage stats listed for heavy attacks. For instance, I put together a Dragonknight build using Undaunted Infiltrator and Infallible Mage, and the base damage value listed for a lightning heavy attack was just over 23,000. And that’s with a spell penetration mundus stone (i.e. not a mundus that would increase the damage value listed), an entirely defensive monster set, only epic level gear rather than legendary, and a couple glyphs that didn’t go towards damage. The damage goes up to over 31,000 if you run a Maelstrom Staff on one bar and are heavy attacking in a wall of elements. This sort of damage suggests to me that Undaunted Infiltrator must proc on every hit of a heavy attack channel, but I’m not certain.