They need a complete rework.
The Aeon Soul Exotic could heal you and nearby allies when you get ability kills.
The Aeon Safe could grant you and nearby allies a temporary damage resistance increase or overshield on ability kills.
The Aeon Swift could grant weapon, movement, and sprint speed for you and nearby allies on precision kills.
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The Aeon exotics only purpose was to reinforce team-rolling in PVP. As was the Rat King. They all have lost their relevance at this point.
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Hunters have enough things requiring precision kills as it is but maybe the aeon exotic could grant a team reload upon ability kill. Heck even a weapon damage buff