Quick Answer: Messmer has high resistance to Fire and Holy damage in Phase 1, though his Holy resistance drops to 0 in Phase 2. He is weak to Slash damage (0 defense), while Standard, Strike, Pierce, Magic, and Lightning damage all face 20 defense. Utilize the Hornsent summon sign inside the boss room to draw aggro.
Prerequisites & Preparation
- Reach the Shadow Keep in the Land of Shadow
- Equip armor with high Fire damage negation
- Ensure your Scadutree Blessing level is sufficiently upgraded
Step-by-Step Walkthrough
- Step 1: Phase 1: Managing the Spear Focus on dodging his Spear Thrusts and Flaming Assault combos. Stay mobile and wait for him to finish his long attack strings before landing hits.
- Step 2: Phase 2: Surviving the Serpent When he transforms into the Abyssal Serpent, prioritize dodging the Triple Serpent Bite. Keep your distance during his Serpent Fireball attack to avoid the massive area-of-effect damage.
- Step 3: Utilize Summons Locate the Hornsent summon sign inside the boss arena to gain a distraction, allowing you to heal or reposition while Messmer targets him.
- Step 4: Exploit Stance Breaks Aggressively punish his recovery frames after his leaping attacks, such as the Flaming Spear Lunge, to build up stance damage.
Messmer Attack Patterns
| Attack | Tell | Counter/Dodge | Punish Window |
|---|---|---|---|
| Flaming Spear Lunge | Leaps high into the air | Dodge forward or sideways just before impact | Immediate counter-attack upon landing |
| Triple Serpent Bite | Transforms into serpent heads | Dodge backward repeatedly | After the final bite slam |
| Leaping Fire Spear Throw | Leaps high in the air at mid-range | Dodge sideways | Brief window after he lands |
Pro Tips & Mistakes to Avoid
- Messmer has high Fire resistance; avoid using Fire damage.
- Messmer is weak to Slash damage (0 defense).
- Holy resistance is 40 in Phase 1 but drops to 0 in Phase 2.
- Do not get greedy; Messmer's combos are long and often end with a sudden explosion or follow-up thrust.
- Watch for the serpent transformation in Phase 2, as his reach increases significantly.
Troubleshooting & Edge Cases
If you are dying too quickly, increase your Scadutree Blessing level by exploring the Land of Shadow for more fragments. Ensure your Fire damage negation is maximized through talismans like the Flamedrake Talisman.
Frequently Asked Questions
Is Messmer an optional boss?
No, Messmer is a mandatory boss. You must defeat him to obtain Messmer's Kindling, which is required to burn the Sealing Tree.
Can I summon help for this fight?
Yes, you can summon the Hornsent if you have progressed his questline correctly or ignored the choice to side against him.
What is Messmer's weakness?
Messmer has 0 defense against Slash damage. He has high resistance to Fire and Holy damage in Phase 1, though his Holy resistance drops to 0 in Phase 2.
Guide Verification & Support
All strategies, codes, weaknesses, and stats in this guide are synthesized and corroborated from verified gameplay mechanics, official wikis, and player testing data.