Apparently you can get the eidolon tablet before killing any hardmode boss : r/CalamityMod
Primordial Wyrm - Official Calamity Mod Wiki
Bosses - Official Calamity Mod Wiki
Why did i get 5 eidolon tablets from infernum EoC? Killed it at night. : r/CalamityMod
The Wyrm Excursion. Calamity No Accessories (5) - YouTube
the astral biome spawned on the dungeon and now the cultists won't spawn. is there any way to fix it or spawn the lunatic cultist without the 4 cultist : r/Terraria
Moonlord Pre-Planetera in Calamity's Death Mode + Master Mode : r/Terraria