@tuco Chibilukina is my hero xD I played his videos dozens of times and, to my knowledge, he is the only multi boxer who got creative enough to finish all the dungeons in 10+ in legion. 5 x team might get you to M+15 for specific dungeons and affixes but it won’t be as successful than his compo. Here is a non exhaustive list of the challenges he overcame:
- constant move of the 4 ranged to deal with the mechanics. That is the most important imo.
- instant heal to deal with the fact that when one toon needs to move, they all move.
- same thing with hunters, instant dps.
- speed buff with the Druid guardian to get out of incoming damage zones like with odyn.
- at that time, multiple brez available so more forgiving.
- burst of dps for mobs that need to die quickly such the lightning mob for odyn or the avatars for the boss at the end of the vault.

I’m taking a break right now but I’ll likely level the exact same team for bfa. I had a lot of fun with 5 x DPS but it got frustrating to get high keys for dungeons I could not do without being over geared. So I ended up doing pugs for high keys in mythics and raids, one toon at a time. That part was not fun.