Writhing Runeblades

Writhing Runeblades is an Arcanist Skill, found in the Herald of the Tome skill line.

Writhing Runeblades
2700 Target: Enemy Base Skill: Runeblades
COST DETERMINED BY HIGHEST MAX RESOURCE Craft a series of Apocryphal runes before launching them at a foe, dealing 718 Magic Damage three times and generating Crux. This ability gains between 1095 and 2191 Weapon and Spell Critical rating and deals 3% increased damage for each active Crux when cast.

Writhing Runeblades is a morph of Runeblades base skill. The other morph is Escalating Runeblades.