Classic What are the exact mechanics of combat ressing in raids and M+?

The only thing I know for sure is that the CR charges are cumulative for the entire group and not reliant on individual character's cooldowns... But that's about it, and I have not been able to find any definitive answers to how they work, other than some very outdated articles and forum posts.So, how do they work?Is the number of available charges dependent on the number of classes able to do CRs? Does it work the same way for raids and M+? Is it different in mythic and non-mythic raids?If yes, does having engineering with the CR item count towards this total?If no, what's the "default" number of available charges?Do CR charges reset with each raid boss pull?Does using a Soulstone before pull count towards the total available number of available CRs during combat?What's the rate in which CR charges (re)generate? 10 minutes per charge? Is it different in raids and in M+?Are CR charges consumed only when the ress is accepted? Will a charge be consumed if I cast a CR, but it's not taken by the dead player? via /r/wow https://ift.tt/QpwXFxz