Aegis raises a protective barrier in front of him while the ability key is held. Vanguard accumulates a percentage of the damage absorbed. Aegis himself is unable to attack or activate other special abilities (except Shield Dash) while Vanguard is active, and his movement is slowed to 25% / 30% / 40% / 50% of his base speed.
Vanguard is a charged ability that consumes 10 energy per second for the duration it is held. The ability will remain active until the ability key is released or Aegis' energy is depleted. Aegis is immune to stagger, knockback and knockdown effects while charging.
Upon deactivation, all stored damage is released in a violent burst that affects all enemies within range.