You've defeated Radahn, traversed the underground labyrinth of Nokron, and survived the Lake of Rot. After hopping in a coffin and riding down a waterfall of Scarlet Rot, you find yourself standing before a huge fog door. Behind it is one of the most unique bosses in all of Elden Ring: Astel, Naturalborn of the Void.

Taking down this cosmic horror is the last major step required to complete Ranni the Witch's questline, but surviving the fight is a real challenge. With a huge moveset of unpredictable attacks--many capable of one-shotting you from across the arena--coming out victorious requires memorization and, above all else, timing. Here is everything you need to know to defeat Astel.

Before going in

Astel has fairly high absorption of non-physical damage, so go in armed with whatever weapon or spell in your arsenal is capable of dishing out the highest physical DPS possible. It is immune to most status effects, but still susceptible to Bleed, Poison, and Scarlet Rot--the latter of which being a particularly effective strategy.