What can I improve to hit 20k? My high score is 16,166.
Sadly, I wasn't recording when I achieved my high score, so this is the one I uploaded. Seemingly, it wasn't that bad, and I don't see any glaring mistakes compared to my best run, but the score is way lower. I'm clearly doing something wrong, but I can't tell what.
I caught at least 4 mistakes (where I didn't realize I whiffed a parry and spent a few seconds flailing around /w S11, tried Perfect Assists when I was out of Assist Points, wasted Seed's downward mech punch after breaking the blade, whiffed S11's EX because the boss flew back to start launching Miasmic Blades), but I don't think they changed how many stuns I got or ruined the stun window (though I might've gotten the 2nd stun before the shield wall sequence). Maybe it's because the first part of Seed's 2nd mech punch landed outside of the stun window?
Build. Pictures in comments.
Regarding the Dawn's Bloom 4 pc. on S11: I chose that instead of Woodpecker because Seed is the dominant agent in this boss fight, so keeping up Woodpecker stacks for the stun window is too difficult.
Edit: I just hit 16,240! I noticed Seed's buffs weren't fully up during the second stun window and rectified that. I think I could get a few hundred more points by improving that second stun window further (I scrambled a bit and failed to fit in S11's ultimate), but I've still no idea how I can get to 20k.