How I constructed the Aetherflow vs Fey Gauge mechanics, simply put, looks roughly like this:

- ACN's Aethercharge becomes Aetherflow on SCH: a GCD button that generates 1 Aetherflow and 20 Fey Gauge. It also has charges.
- Aetherflow stacks enables 1 use of Libra, an OGCD tool that converts your DPS spells into different spells.
- Miasma spells are returned to SCH as a 2nd GCD DoT with a hardcast and last 24 seconds. Under Libra, Bio spells transform into Pain, a 3rd DoT to manage which lasts 45 seconds.
- Ruin/Broil spells become Fester. In the doc, I listed Broil as being 260 potency while Fester is 500, increasing by 40 for each of the 3 DoTs on your target.
This is the basic Aetherflow gameplay loop, though there's a bit more in the doc.

Meanwhile, Fey Gauge enables two GCD spells that change based on your current Faerie.
- With Eos summoned, you can cast Protraction or Indomitability. These are spells you cast by pulling aether from your faerie. Both cost 20 fey gauge and grant 1 Aetherflow. Protraction can be spread to other party members through Deployment Tactics.
- With Selene summoned, you get Retaliation and Expedient. Same deal as above on the fey gauge cost and Aetherflow generation. Retaliation is similar to Eye for an Eye--taking physical damage reflects a physical damage down on the attacker while taking magical damage reflects a magical damage down onto the attacker. This can also be spread through Deployment Tactics. Expedient is just the sprint.

You can store up to 100 Fey Gauge so there's little concern about overcapping. Shadowflare also generates Aetherflow when used, which it has a cooldown, and Recitation causes your GCD heals to generate 1 Aetherflow as well.