The version of the build using my riven. With conditionals applied it says this is much weaker than the rivenless version. The site is wrong as it doesn't calculate certain stats properly.
The Initial Combo bonus raises its heavy attack multiplier from x2 to x3, a 50% total damage increase.
The damage vs Corpus is an effective 15.87% total damage increase. This bonus is applied twice multiplicative with itself for our bleeds, increasing the bonus from x2.4 damage to x3.225 damage.
The crit chance is displaying wrong on the site for some reason and is actually 231.2% on heavies. That's not even a conditional error, the site owner just straight up coded something wrong. Oh and before anyone tries saying I'm wrong I did in fact test it ingame and red crits came far too often for 206% to be accurate.
Overall, this is what a riven god roll looks like. If only it had a harmless negative to beef up the crit chance & corpus damage it'd be even better.