I'd just use aegon and try to get as much damage in as possible before he gets to a sp3. But also who else do you have on your team?
Just did my third airwalker path with aegon yesterday (on misty now). 5/65 max boosted, full suicides, ascended. Used 40% revives and a couple of lv4/5k potions.I did it in 3 revives (should have been 2, as i died at 4%). The method I used, was sp2 when available, but otherwise, combo to unblockable, then immediately charge to heavy to knock down. Weaved in relic for other knock down opportunities.Bait his sp2s.I occasionally would be hit with an sp1 when charging heavy, but you can't lose over 5% health and immediately shrug the darktide and can just combo and charge to heavy again. You receive massive furies if he hits you when charging heavy (which was nearly every time) and a combo after that, would be doing 350k+damage and you'll get at least three to four mass fury attacks per 40% revive, if doing this.
There's a little Galactus looking thing under air walkers health bar. That's the knockdown timer. If you don't refresh it b4 it expires, that's when he regens
No worries! I also found out a few times that even if you're mid special & timer expires, he'll regen. As moose said, knock down early. Once I found a reasonable rhythm, I started trying to knock down when the timer was about at 50% expired