Vicious Death is an Elite Gear Set. Set pieces can be bought directly from the Elite Gear Vendors using Alliance Points, and are also available via "Rewards for the Worthy" mails by participating in PvP. Pieces are Abah's Watch Style in Light Armor.
2 items: Adds 1-129 Spell Damage
3 items: Adds 12-1096 Maximum Magicka
4 items: Adds 9-833 Spell Critical
5 items: When you kill a Player, they violently explode for 183-15815 Flame damage to all other enemies in a 4 meter radius.
The set consists of light armor and jewelry in all slots, as well as weapons and shields of all types.