If this buff can be applied to a character after 3 minutes of combat, whats to stop people from synchronizing their watches and saying "okay 3 minutes are up everyone wipe" and doing this 5 times?
I'm not gonna read through these 11 pages, because I'm just on my lunch break from work and don't have much time. But they DID say that players "NEED to try their best" during the first 3 minutes, which suggests that if players just stand idle for 3 minutes and then wipe just so they can receive their buffs, not a damn thing will happen when the try a 2nd time... ...no buffs for them. At least, that's what I gathered.