In my opinion Aetherflow should be restored to Arcanist regardless with it and Energy Drain would be learned at level 10 for both Scholar and Summoner. I don’t see why the skill should ever be removed either. It can be indirectly nerfed by the weave tax on Ruin II, but I also feel Ruin II should also be buffed to make it more appropriate to weave Energy Drain by itself instead of clipping it as its used currently.

What I’d prefer to do is add another DPS oGCD to weave alongside heals that doesn’t consume Aetherflow but keys off of it. Something like a 30s, 3 charge, 300 potency Ability that has its Cooldown reduced by 5s every time the SCH uses a healing spell or action or spends Fey Gauge. This also indirectly nerfs Energy Drain but doesn’t discourage using it or make it feel less impactful. Between a 240 potency Ruin II and that every Energy Drain’s effectively losing 100 potency, making the initial 150 potency more justifiable.