Original mod: [https://www.curseforge.com/minecraft/mc-mods/eye-of-dragons]
This mod adds 4 new eyes, ice dragon eye, fire dragon eye, lightning dragon eye and hydra eye (I made this because i got tired of never finding tier 5 dragons and the hydra
The eyes track all of the nearby dragons if they are close enough
Just add this mod to the mod files in the modpack of https://legacy.curseforge.com/minecraft/modpacks/rlcraft-dregora/files/5861566 And that should work fine