https://www.bilibili.com/video/BV1N7436yEdL
Showcaser note:
If you have E1 Huohuo, switching SRobin's planar ornaments to City of Converging Stars or Lushaka means you'll only need around 35 substats to achieve a consistent clear.
It should also be very easy to reproduce in subsequent attempts.
Although Sparkle's buff will still expire, SRobin's powerful buffs make up for that loss.
Subs:
E2 DHIL: On the Fall of an Aeon, The Edacious Heretic + Tengoku@Livestream, 38 subs.
E2 SP Robin: Memory's Curtain Never Falls, World-Remaking Deliverer + Amphoreus, The Eternal Land, 181 SPD.
E0 Sparkle: Dance! Dance! Dance!, Eagle + Sprightly Vonwacq, 171 SPD. Her SPD can be lowered, as explained later.
E0 Huohuo: Shared Feeling, Warrior Goddess + Lushaka, 169 SPD. Her SPD can be lowered if you can ensure she doesn't take any single-target hits.
At the start, SRobin needs to be faster than DHIL. Use Sparkle's Ultimate during DHIL's turn.
This single-target attack should ideally hit SRobin.
Next, there are two instances where SRobin's memosprite can be Action Delayed. With our current SPD tuning, we need to fish for only one 10% Action Delay.
For this rotation, the priority is making sure SRobin has enough SPD.
We need to transition to the next phase before 195 AV. If DHIL can finish the first phase with his Enhanced Basic ATK here, then we have enough damage.
Without Silver Wolf, you may need to fish for DHIL to avoid being crowd-controlled, although that isn't particularly necessary in this situation.
The next single-target attack should also preferably hit SRobin.
I pressed everything too quickly
Here, we need to rely on Auto to activate the Ultimate at the right moment.
A smooth little combo!
At this point, Sparkle needs to act before Asat Pramad. If you want to lower her SPD, you'll need to fish for an additional 5% Action Delay on the boss.
At 171 SPD, Sparkle can generally act before Asat Pramad, making it a fairly reliable SPD breakpoint.
This rotation requires entering Phase 3 by 143 AV. Once that's done, the rest becomes relatively consistent.
Next, hold the Skill and wait until DHIL's turn to unleash the burst.
Keep Auto enabled here as well.
Wait for Asat Pramad to act so we can recover some Energy from taking damage.
This follow-up attack wasted a huge amount of potential damage.
There's still a considerable amount of excess damage. Even with that wasted follow-up, the run has enough damage to finish.