This datapack allows you as the player to buff every player in a 10 block radius around you with regeneration and strength while playing an instrument. This also works on all OWNED mobs (even modded!), no matter who the owner is. Owned undead mobs get double the healing with instant health because theyre immune to both regeneration and poison effects.
If you've ever played with the Immersive Melodies mod before you know that hostile mobs also have a chance to spawn holding an instrument. So hostile mobs also get buffed! If a hostile mob plays an instrument it will buff a hand picked list of hostile mobs in the same area around it and with the same effects, but with greater healing. Creepers do not receive any buffs.
(Sadly I couldn't find a way to automatically mark every hostile mob so it only works on vanilla hostile mobs)
