Aether Cluster is a consumable item which has a chance to drop from Aetherial creatures.
One can be also obtained by choosing to keep some of the Aether Crystal for yourself in the hidden lab after killing Darius Cronley. (See Cronley's Secret side-quest.)
"A large cluster of Aether crystals, humming with strange energy."
- 90 Second Skill Recharge
- 10 Second Duration
- 75% Damage Absorption
- 100% Skill Disruption Protection