Boss Affix By Players
Requires Creature Level & Loot Control only if you enable affix swapping.
By default, boss summons are blocked until 2 living players are within 180 m of the spawn point. Trophies are not used. The local player sees a center HUD message if the check fails.
SwapAffixByPlayerCount defaults to false so this mod does not change CL&LC affixes unless you turn swap on.
Config: BepInEx/config/cjayride.bossgroupaffix.cfg
Install on the server and all clients.