Hung Jury is great and all but Oxygen SR3 should have been the best option since should have benefited from the Solar Subclass updates/changes and the current artifact mods.
Its main perk Meganeura: which is Dragonfly deals more damage based on the number of precision hits dealt beforehand. Would have been great if other perks would complement it.
Not bringing back Oxygen SR3 has been a terrible mistake.
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Would have taken some work but they could have changed oxygens unique perk to enhance all explosions while giving a minor stat bump and then put only explosion related perks in the opposite column (incandescent, timed payload etc)