There are a *lot* of debuff options out there.
Damage at lvl 11:
Applying Shatter Confidence on Playful (Core):
Seelah wasn't even here? Who knows what I was doing. The Shatter Confidence would have set up Reg for the kill but he was wearing the bugged Haste necklace so couldn't attack. Once it wore off he (and Lann IIRC) did but MC got mauled in the meantime. Unfair add on Touch of Good with Mark from Seelah and this gets there.
Shatter Confidence + Disarming Strike on Soul Hunter:
The Intimidate from Shatter Confidence applies before the Disarm on Disarming Strike that triggers from the crit so helps land the Disarm, but it uses AB instead of CM on the Disarm, which can be good or bad. Mark not down yet here either. First playthrough still missing some things. Hence Core.
Mythic Trick Knowledge (World) 2 was sorely missed after going Legend:
Changes Crit miss into crit.
Parry into Disarm on Vavakia Vanguard:
Pretty nice CMB there! Looks like it's Parrying an attack on Daeran from across the screen? The big malus suggests it's covering multiple characters. STR drain not fun, but we got him.
Parrying a nat 20:
That big malus would be a steep hill to climb on Unfair. But you can see there's still a good bit of cushion. Not sure if it's working as intended or not.
About those saves:
Looks like Dueling Gloves gives +2 bonus on Reflex with Trained Reflexes as well.
Doing a little more damage on this fight:
40 lvls = ten activations of Perfect Strike with no Monk lvls lol.
Finally the Disarm on Riftcarver which was the original goal of the build: