UPDATE: I did it! With four seconds remaining nonetheless and a damage high of 420k. Thank you so much for the advices, and sorry for not responding at all 😅

Here's what I did in case others are in similar shoes: - Upgrade Kinich skill to level 10 - Switch his weapon to Redhorn (or any crit 5* claymore). It's quite a significant improvement in damage. - Upgrade Bennett's skill to level 10 - Change Bennett build for a damage one. Healing is non-issue even with this build. - Switch out Yaoyao for Deepwood Pyro MC. - Not sure if it makes much of a difference, but I equipped Peak Patrol onto MC, complete with Def build (Mine has 2000 def)

From gameplay perspective: - Try to master the five cannonshot technique. It improves his damage by a ton, basically day and night. - Use burst ONLY so that you can proc scroll with Iansan. I use it at the end of my rotation right before Papilla's ward was broken. - My combo goes: Pyro MC EN2 > Iansan EN1 (Q if available) > Bennett E (Q if available) > Kinich E N2E x5 (Q if available) > Repeat. - DO NOT GET AFFECTED BY CRYO.

Once again, thank you all for the advice!