Superior Sigil of Momentum
 
Element: Enhancement
Double-click to apply to a weapon.
Gain a charge of +5 toughness each time you kill a foe, five charges if you kill an enemy player. (Max 25 stacks; ends on down.)
(Only one attribute-stacking sigil can be active at a time.)
Exotic
Sigil - Upgrade Component
Required level: 60
216