Great tool, couple bugs I'd like to submit for your review.
Blood Rush Critical Chance error:
Steps to recreate bug- Install Rank 10 Blood Rush on a blank melee weapon (in this example case, the Prisma Skana), then observe the CRITICAL entry, with respect to Combo Counter.
Observed Results (for Prisma Skana):
1x Combo Multiplier (IE No combo counter) returns 2.0x|53.0% CRITICAL
1.5x Combo Multiplier returns 2.0x|69.5% CRITICAL
2.0x Combo Multiplier returns 2.0x|86.0% CRITICAL
Expected Results (for Prisma Skana):
1x Combo Multiplier (IE No combo counter) should return 2.0x|20.0% CRITICAL
1.5x Combo Multiplier should return 2.0x|69.5% CRITICAL
2.0x Combo Multiplier should return 2.0x|86.0% CRITICAL
Accompanying information (Taken from warframe wikia):
Without a Combo Counter, Blood Rush provides no bonus to critical chance.
A special exception to be made for the Blood Rush mod that checks to see if the Combo Counter is set higher than 1x before applying effect.
Riven (oh god another riven bug) Crit Chance Error:
Steps to recreate the bug: Apply a Riven with the Critical Chance on Slide Attack stat set to 80% on a melee weapon (in this case, the Prisma Skana), then select the "Slide" Combat State. Observe the CRITICAL values.
Observed Results (for Prisma Skana): 2.0x|36.0% CRITICAL
Expected Results (for Prisma Skana): 2.0x|100.0% CRITICAL
Research both from the Warframe wikia and my own observations with a similar stat riven show that the Critical Chance on Slide Attack effect on melee rivens functions identically to Maiming Strike. See http://warframe.wikia.com/wiki/Riven_Mods#comm-1210556 for supporting evidence.
Rather than have the Riven's entry for Critical Chance on Slide Attack be a multiplicative effect, it should be changed to function identically to Maiming Strike.
Hope this all helps you! Again, great product you got here! :D