Quick Answer: Rennala, Queen of the Full Moon is a mandatory demigod boss in Elden Ring located at the top of Raya Lucaria Academy in Liurnia. Recommended level: 40-60. Phase 1 is a puzzle requiring you to kill glowing students to drop her. Phase 2 is a sorcery duel. Defeating Rennala unlocks the Rebirth respec system at the Roundtable Hold — one of the most important features in the game.
Rennala, Queen of the Full Moon is one of Elden Ring’s most thematic and unique boss encounters. Unlike most demigods, her fight is split into two completely different phases with totally different mechanics. Phase 1 is a puzzle — phase 2 is a duel. This guide explains both phases, the gear that trivializes each, and why Rennala is so important to your build long term.
Where to Find Rennala
Rennala waits in the Grand Library at the very top of Raya Lucaria Academy, in central Liurnia. To reach her you must:
- Obtain the Academy Glintstone Key from the Glintstone Dragon Smarag area;
- Navigate the Academy from the South Entrance Site of Grace;
- Defeat Red Wolf of Radagon to enter the upper library;
- Climb to the Debate Parlor and continue up to the Grand Library.
Rennala is a required boss for the main story path, but her real value lies in what she unlocks after the fight.
Phase 1 — The Egg Puzzle
Phase 1 is unlike any other boss in the game. Rennala is shielded by a magical egg, surrounded by floating students chanting to maintain it. The fight has very specific rules:
- Rennala is invulnerable while the shield is active;
- The floating students sustain the shield;
- You must kill the highlighted students to break the chant;
- Breaking the chant drops Rennala from the air, exposing her to a critical hit.
How to execute:
- Run around the arena and identify the glowing students (they emit a bright aura);
- Hit each glowing student until they die — they have very low HP;
- Avoid the random books and projectiles she summons;
- When all glowing students are dead, Rennala drops to the floor. Run to her, mash R1 for a critical attack;
- Repeat this cycle 3 times to deplete her phase 1 health.
Recommended gear: bow or ranged catalyst for the students, fast melee weapon for the criticals.
Phase 2 — The Sorcery Duel
After phase 1, Rennala teleports to a new arena bathed in moonlight. This is the real fight — and one of the most beautiful arenas in Elden Ring. Phase 2 is a one-on-one sorcery duel.
Recommended level: 40 to 60. Weapons at +6/+2 or higher.
Strong loadouts:
- Any bleed weapon — Uchigatana with Blood Slash melts her;
- Melee aggression — she has low poise and staggers easily;
- Lightning Spear / Catch Flame — she summons golems that are weak to fire and lightning.
Phase 2 — Key Moves
- Full Moon — she charges a glowing moon and launches it. Tracks heavily but deals huge damage on hit. Roll perpendicular at the last instant;
- Comet — fast straight-line projectile. Sidestep, do not roll;
- Summon golem — she summons a Troll, a Dragon, or Onyx Lord. Burn the summon down quickly so it does not stack with her aggression;
- Stagger combo — when staggered, she shrieks and unleashes a magic explosion. Back off the moment her stagger animation begins.
Stagger Strategy
Rennala has very low poise. Two strong hits from a colossal weapon often stagger her, opening a critical attack window. Mage builds with Carian Greatsword or melee builds with Stamp (Upward) Ash of War can chain-stagger her to death.
The Summons She Calls
If she calls a summon, it almost always becomes the bigger threat than Rennala herself:
- Battle Troll — easy to dodge but blocks your line of sight;
- Onyx Lord — fast magic combos; deal with him first;
- Dragon — wide breath attack; kite around Rennala while attacking the dragon’s tail.
Single-target burst is your friend. Drop the summon, then continue pressuring Rennala.
Punish Windows
- After her Full Moon — long recovery animation;
- After her summon ritual — she stands still for ~2 seconds;
- After comet — short window but enough for one fast hit.
Common Mistakes
- Healing during her sorcery cast. Her projectiles track. Heal during her summon animation instead;
- Fighting at range. Rennala is a sorcerer — she wins ranged trades. Stay aggressive and in melee;
- Ignoring her summons. They tip the fight against you in seconds.
Rewards — The Real Value
Rennala’s defeat unlocks two of the most important features in the game:
- Rebirth at Rennala — she becomes a friendly NPC who lets you respec your stats unlimited times for Larval Tears. This is one of the most powerful systems in Elden Ring — you can completely change your build at any time;
- Larval Tears — used for respeccing. Stock up on these throughout the world;
- Remembrance of the Full Moon Queen — exchange at Enia for the Carian Regal Scepter (best Int staff in base game) or Rennala’s Full Moon (the iconic moon sorcery).
Lore Significance
Rennala is the former queen consort and one of the most tragic characters in the game. Her phase 1 chant is her mourning the loss of her family — Radahn, Rykard, and Ranni. The arena bathed in moonlight is what she truly remembers, and her phase 2 self is the powerful Carian sorceress she used to be. Read her item descriptions and you will see one of Elden Ring’s most heart-breaking stories.
What’s Next
Defeating Rennala completes the Liurnia main path and gives you her Great Rune (when refilled at the Divine Tower of Liurnia). It also unlocks several questline progression points — particularly Ranni’s, which depends on Rennala’s defeat to advance.
Final Notes
Rennala is the boss most players underestimate the importance of. Her fight is easy compared to other demigods, but her post-fight gift — the ability to respec — is one of the most build-enabling unlocks in the entire game. Beat her, then use her freely to experiment with every weapon and stat allocation Elden Ring offers.
Frequently Asked Questions
Q: How do you beat Rennala?
A: In phase 1, hit the glowing chanting students until Rennala falls, then critical-attack her body. In phase 2, stay close to interrupt her sorceries. She has low poise and staggers easily.
Q: Where is Rennala in Elden Ring?
A: Rennala is in the Grand Library at the top of Raya Lucaria Academy in central Liurnia. Access requires the Academy Glintstone Key.
Q: What does defeating Rennala unlock?
A: Defeating Rennala lets her become a friendly NPC at the Roundtable Hold who can respec your stats unlimited times using Larval Tears.
Q: Is Rennala mandatory?
A: Yes. Rennala is required to complete Liurnia’s main story path. Her Great Rune is also necessary for entering Leyndell.