Here is some commands to cheat into boss battles - General Discussion - ARK - Official Community Forums
Griffin - ARK: Survival Evolved Wiki
ARK - HOW TO UNLOCK RAGNAROK! - SIMPLE AND EASY! - CONSOLE! - (Commands!) - YouTube
ARK Console Commands and Cheat Codes - Ark Survival Evolved
Ark Survival Evolved | So schaltet Ihr Ragnarok frei Ps4 - YouTube
ARK - Survival Evolved: Cheats und Item-IDs für PC, PS4 und Xbox One
ARK: Survival Evolved Guide - How to Ascend and Find the Final Boss | ARK: Survival Evolved
Steam Community :: Guide :: A better list of Cheats/ Item ID's for ARK! Playtested,updated. Easier finding! Aberration Ragnarok Primitive + Scorched Earth