That picture was from a very long time ago with 5 hundings 2 kena 3 agility and i forget the weapons but I had continuous attacks and kena proc'd as well as my weapon enchants. You can definitely get it way higher than that nowadays
Anti-Matter | Nightblade | AR 40 | Flawless Conqueror | Former Emperor x 2
Anti-Psychotic | Stamplar | AR 25 | Former Emperor
Anti-Matter | Stam DK | AR 18 | Former Emperor
Anti-Gravity | Stam Sorcerer | AR 10 | Flawless Conqueror
Anti-Freeze | Magicka DK | Flawless Conqueror
Anti-One | Magicka Sorc | Flawless Conqueror
Anti-Matter | Magplar | Shehai Shatterer
Officer of Haxus | NA
Member of The Order of Mundus | NA
Former Member of Havoc, IR, Learn 2 Play and Crown Store Heros
Ok well I know NBs have passives and there are racial passives that give weapon damage boosts. Alchemist gives 671 + 130ish weapon dmg Kena 130ish +680ish so that's + 1600ish just from those sets. Then something like Hundlings I think gives like 299, all weapon damage glyphs can be 510 more that's 3100ish more. Major brutality I think is +20% so 3410ish all from what you're whereing.
Bosmer for example has +21% stam regen, Mundus gives 300ish regen.
This is all hypothesis but I can see it being done.