Profundity mirror (details in Description)
This approach is very reliable for me. It can fail but it's few and far between. Needs a 7-star Profun because Profun basic giving bonus turn is key. The goal is to get to ult quicker than enemy Profun while keeping your ships intact.
Starting moves
- Outrider 2nd special
- HMF basic
- Profun 1st special on Outrider
- Outrider 1st special
- RYW basic
General strategy for the rest
- Outrider 2nd special is highest priority, followed by 1st special, then basic. Though if you can kill enemy Outrider with one hit, you can use 1st special or basic instead of 2nd special
- Profun pretty much just use basic on Outrider, at least before getting to ult. On Profun's 2nd turn, if your HMF gets Shield Disruption, use Profun's basic on HMF instead of on Outrider (to help HMF shake off the Shield Disruption quicker in case it gets focused down).
- HMF and RYW pretty much just use basic, though you can use RYW special to dispel buffs off of a heavily buffed enemy ship.