Video showing the Ultra type.
https://www.youtube.com/watch?v=qWCr7C-NTXI

under row 33 Technology, Check chests for manuals to get more points if needed.

Build an Altar: Set up an altar at your base just for this battle. The boss can damage buildings and defeat weaker allies. It's smarter to fight here than risk your main base.

Keep the Palbox Safe: Make sure the Palbox is fully healed before the fight. If it's destroyed, the battle is over, but its large health pool means it can take quite a bit of damage.

Beat the Clock: You have 10 minutes to beat Bellanoir, just like Tower Bosses. Use your time wisely to win.

How to Bring Bellanoir: Collect 4 slabs from around the map cave and combine them. Find normal slabs on sanctuary island and Libero slabs in tough dungeons.

Boss Level: Bellanoir is a hard boss at the end of the game. The standard version is level 30 with about 300K. The Libero and Ultra versions are even harder at level 50.

Winning Tips: Bellanoir is vulnerable to dragon types. Team up with these or other strong counters to do a lot of damage.

Loot: Winning against Bellanoir gives you things like Ancient Civilization Cores, Training Crystals, Bellanoir eggs, Multiclimate Shirts, and special items for beating the Libero and Ultra types, including the ultra slab and the "Witch's Crown."

Call for Backup: You can have allies from your base help in the fight. Their support is crucial for defeating Bellanoir's powerful attacks.