Description:
Augments the Covenant of Invulnerability spell by adding Bonus Protection and granting 1 Invulnerable Soul charge (per rank). When struck by a magical attack, a charge is converted into an Arcane Seal - up to a maximum of 10 Seals. Invulnerable Soul charges will reset to the full amount 10 seconds after the previous charge was converted into a Seal.

Spell: Seal of Yog
Description:
Consumes all active Arcane Seals and grants the templar increased Critical Rating. All critical strikes performed for a short time afterward restore Mana to the templar. Enemy spell casters will lose their Mana for every spell cast on the templar. This Mana loss increases per attack up to a maximum of 5 times. All effects increase in power based on the number of Seals consumed.

Dark Templar - live