Vicious Serpent is a stamina based medium armor set. The 5-piece bonus reduces the cost of your Stamina abilities by 8%. When you kill an enemy, you restore 2150 stamina and gain Major Expedition for 8 seconds, increasing your Movement Speed by 30%.
Vicious Serpent is one of the strongest sets for stamina-based damage dealers. The 8% cost reduction make your skills a lot cheaper and therefore you can more easily sustain your rotation. On top of that, every time you kill an enemy you get another 2150 stamina back, although it has a 1-second cooldown. You also get the speed buff which you can keep up 100% as long as you keep killing monsters. This is one of the best sets in the game for Stamina DPS because it adds so much damage and gives you a much easier time to sustain yourself. You can also only frontbar this set and still benefit from the bonus most of the time.
The Vicious Serpent set is part of the base game and can be found in the Craglorn Trials Hel Ra Citadel, Aetherian Archive and Sanctum Ophidia. Each set item is bound on pickup. You can acquire medium armor, weapons and jewelry of this set. Vicious Serpent uses the Celestial motif style.