Nightmare raids are the hardest version of Broken Blade’s boss fights, and they hold the rarest rewards in the game. Each Nightmare boss carries more health, faster attacks, and a separate drop table that includes powerful Runes, Moon Pieces, and the Nightmare Ores used for final weapon upgrades. Beating them is less about raw stats and more about knowing the fight cold before you walk in.
Quick answer: Defeat a boss’s normal version until you can clear it using half or less of your healing items, then summon its Raid form from the Demon Summoner NPC on Nidavellir Island, pick Nightmare difficulty, and fight one boss at a time. Nightmare bosses respawn every 30 minutes.
How Nightmare raids unlock in Broken Blade
Nightmare difficulty only opens after you defeat the normal version of a boss. Raid bosses cover the main island lineup from Moraros through Nivaron, plus Veyrath, who exists only as a raid. Every raid fight has two tiers, Hard and Nightmare, and Nightmare is locked behind clearing the easier content first.
Because Nightmare versions hit harder and last longer, the practical requirement is a forged, upgraded weapon and a strong build before you attempt them. Treat the normal field boss as your training ground until the fight feels routine.
How to summon a Nightmare raid boss at Nidavellir
How to beat a Nightmare raid boss
The reliable method is to master the normal fight before stepping up. Learn one boss at a time and run its standard version repeatedly until you can win using half or less of your healing items. That healing buffer is your signal that you have enough damage and survivability to survive the longer, faster Nightmare version.
Focus your effort on a single boss rather than rotating between several. Nightmare attacks are quicker, and the enemy has more health, so clear speed and consistent damage matter more than stacking defensive items. Use the Boss Lock-On control (G) to keep your attacks landing during fast movement phases.
Note: Nightmare bosses respawn every 30 minutes, so plan your session around that timer instead of expecting back-to-back attempts.
Nightmare raid boss drops and rates
Each Nightmare boss has its own signature Rune and a high-percentage Moon Piece drop. Runes sit at very low rates, between 0.02% and 0.12%, so expect long farming sessions for those. Moon Pieces, by contrast, are close to guaranteed at the top of the boss list and are the main reason to farm Nightmare for Excalibur crafting.
| Nightmare boss | Rune drop | Moon Piece chance |
|---|---|---|
| Moraros | Souls Bomb Rune (0.12%) | 80% |
| Magador | Hell Fire Rune (0.12%) | 85% |
| Ragaros | Hell Fire Rune (0.12%) | 90% |
| Velik | Blizzard Rune | 95% |
| Nivaron | Blizzard Rune (0.08%) | 98.90% |
| Gelaros | Thunder Rune (0.04%) | 100% |
If your goal is Moon Pieces for endgame crafting, Gelaros on Nightmare is the best target since it guarantees a Moon Piece on every clear. Nivaron is a near-equal backup at 98.90%. Nightmare runs also drop Flame, Frost, Storm, and Thunder ores at higher rates than their Hard counterparts, along with Boss Coins, Money, Gems, and EXP.
Veyrath and Nightmare Ores for weapon upgrades
Veyrath is the raid-only boss, meaning there is no field version to farm. On Nightmare, Veyrath drops Nightmare Ores, the material reserved for final weapon upgrades. Clearing Veyrath is also the gate that unlocks Jotunheim, the endgame region tied to Sky Keys, Soul Stones, and the Excalibur route.
Because Nightmare Ores only come from this fight, Veyrath becomes a priority once you are pushing your weapon to its highest tier. Treat it the same way as any other Nightmare boss, by learning the encounter at lower difficulty before committing to the harder version.
Confirming a successful Nightmare clear
A win registers when the boss is defeated and its drop table rolls, so you will see Moon Pieces, ores, Boss Coins, and any Rune appear in your inventory. The boss then enters its 30-minute respawn window before you can summon it again.
The most common reasons a Nightmare attempt fails are entering before you can comfortably clear the normal version and trying to farm multiple bosses at once. Stick to one boss, keep a healing buffer in reserve, and respect the respawn timer, and the Nightmare reward path stays consistent.
