I know it is late but i think I know a few mods that adds contest for the end in 1.7.10 except HEE and enderlicious
Here are a few of them
Et futurum adds chorus plants to the end
Gany end mod
Natura adds sulfuric clouds to the nether and end
Extra utilities adds ender lilly plant
Divine rpg it adds three new mobs for the end one being a ghast like mob and a new boss the ayeraco horde
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