2 items: Adds 9-833 Weapon Critical
3 items: Gain Minor Slayer at all times, increasing your damage done to Dungeon, Trial, and Arena Monsters by 5%.
4 items: Adds 9-833 Weapon Critical
5 items: Adds 1-129 Weapon Damage
5 items: Reduces the cost of your Stamina abilities by 8%. When you kill an enemy, you restore 25-2150 Stamina and gain Major Expedition for 8 seconds, increasing your Movement Speed by 30%.
The set consists of medium armor and jewelry in all slots, as well as weapons and shields of all types. Pieces are named "<item> of the Vicious Ophidian".