Heres a idea p: a hrung/mord/necro difficulty boss that once killed instantly respawns into 2 of himself, if both are killed than 3, 4 and 5, each giving 1 drop but each one has to be relocked. Have it spawn every 20 hours (or 24 to avoid conflict)
To add to my idea p: i picture it as a slime ball, in the shape of a wisp but on the ground. Sort of like the slimes in terraria but much larger. Once killed it would split into 2 of the same boss with half health but swice the speed, than 4 with a quarter health and 4x the speed, Perhaps the first 2 spawns shouldnt have drops, but the last 4 do
I also picture one of its attacks being a aoe where it jumps in the air and slams down onto where people are. Im thinking maybe it should be in a small circular area like arena. I think it would be pretty hectic and fun trying to dodge them, kinda like the orbs from dino.
One last thing that i tht would be fun p: make it immune to taunts, and never target players directly. All its attacks should be debuff and aoe based. Maybe if it lands on you you get covered in slime giving you a speed debuff, dot, and initial damage, thus making it harder to dodge again