Aetherflow Stack Management

[Tinker]

So I should burn all my stacks and refresh whenever Aetherflow is up? No need to hold onto them for 4~6 stacks?

This is when experience comes into play. Lets take T5 Twintania, for instance.

Your main tank is at 85% health, you have two Aetherflows left, and know a death sentence is coming in ~5-10 seconds.
What I would do is an Embrace/Adlo on the tank, Virus on Twintania, and wait for the huge spike damage that's incoming.

Then you can lustrate once or twice, then aetherflow for more stacks.