If i use Ender Demon's spawn egg he doesn't spawn name bar is for 5 sec enabled and gone,Ender Demon only for 2 sec and he gone too and why enderman relic, gone at new versions? I like this Ender Demon, plz fix spawn egg and we can add 3 ender island biomes:
1.is with this dungeon
2.normal biome
3.Normal biome with enderman relic part.
PLZ make this, i like this mod and Ender Demon.

Ender Demon was removed at least a year ago.

Why ender demon got removed because what? He crash? Or something blocks ender demon? Say why removed.

HEE 1 isn't finished and won't ever be, stuff just gets removed occasionally.

He will repleaced with new mob? And new stuff will be added?

HEE 1 is feature-frozen, as for HEE 2 I can't say.

But in version 1.7.9 ender demon spawn by spawn egg but didn't spawn ln survival because no this old biome.And i found relic in new version no relic maybe its error no relic= no demon its 1.8 version of mod

There's no 1.7.9.

I wanted say 1.8.1

In 1.8.1 relic avaible in new 1.8.2 - 1.8.4 no relic and demon off

It was not meant to be spawned for over a year.

Maybe by switching files this will be fixed? i try and say will work or no

The demon is not supposed to work, end of story.