Can't speak for 25m, but I use HA and grab 3 off the bat. Wings+HA, GoAK, AND AD, cause those fuckers hit hard/fast. Refresh sacred shield once you get a few hits taken and youll be on cruise control though; Instant-veng cap. The AP means we're 1-shotting the small inactives, so be careful with abilities so that you don't actiave something you didn't intend to. I had a meta-gem proc fire off on one that I was TARGETTING ~25 yards away, which killed it and spawned a Large
Derp.
We do it with 2 Protpals and a BrM. BrM holds boss fulltime, and the other pal and I pingpong the massives. We tried with the DK soaking/resetting, but he wasn't able to do it reliably after the AMS change ~4-5 weeks ago. So now, with bouncing the massives, nobody NEEDS to clear (but it's nice to know we can).