From patch notes:
Echoing Soliloquy now gets a buff from persuasion (applied at the moment you obtain the feat and remains constant afterwards)Wiki suggests the buff is 5% per 30 effective persuasion. (ofc wiki may be wrong)
I made a DOMINATING character and pumped persuasion to 150 for maxing this buff (25% bonus) so I can trivialize DC by slowing down creeping dread stacks, but buff proved to be unnoticable.
Napkin math: - on DOMINATING I get 3-5 creeping dread stacks, average 4, per turn/6 seconds
- 75% chance per stack to not have it applied, so out of 4 stacks only 1 should get appied on average
- of course this is random, so I can get any amount from 0-5 stacks, but expected result should be 1 stack per turn on average, and frequent 0s and 2s.
Actual situation:- consistent frequent 1-3 stacks per turn, 0s or 4s sometimes happen, 5s happen very rarely
- this is the same expected result as fully unbuffed (0 persuasion) Echoing Soliloquy, as it has expected stacks per turn equal to 2
Random is random, sample size is low and wiki can be wrong. Then again, if I can't see effect of 150 persuasion which should double my time to get Eye of Tchort debuff, I think it is a bug