The fastest way to drop this NM is to either stagger spam and have your BLM team occasionally cast tier 1 spells until Akvan's magic shield drops. When the shield drops, spam all your highest damaging spells. Spike hate is an issue but in theory, your DD and tank should have a large enough cumulative hate built up from damage delt during the magic shield phase to counter the spike. Make sure you don't look him in the eye.

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