Hello so recently ive tested kidney shot and it appears that it has like a 24 seconds DR which means you can never use it off cooldown on the same target or it will be reduced by 50%.
https://www.youtube.com/watch?v=aIS_qp6OqLQ (00:22-00:42),(02:50-03:10) just some examples, you can see that marm uses his kidney shot right off cooldown on the warrior/paladin and its not DR'd
This doesnt work on blackrock atm, please fix it its rly annoying.