My results are more consistent with this math:
when it states the defense is reduced by x% the damage is increased by
(1+(x/100))^1.35 so for example for:
-Falcon the damage is increased 1.54^1.35=1.791 (79% increase)
-Wilbur the damage is increased 1.44^1.35=1.636 (64% increase)
-Gormek (or Valen or many others) 1.34^1.35=1.484
The relationship between debuffs seems additive rather than multiplicative and
for targets debuffed by both Wilbur and Falcon the damage Anzogh (or other reds)
would do is 1+0.791+0.636=2.427
I know it’s more than doubled, but it’s not even close to 6 times or even triple