Where can I find the Ultimate equipments?

The best weapons are random treasure finds. I'm actually having a hard time finding a guide again. I got the Excalibur 🗡 , and randomly saw there were others. Seems like only the sword really makes that much of a difference though, due to crit gems.

Topple = ULT Sword
Jadd = ULT Flail
Lorimar = ULT Bow
Wendel = ULT Hammer

These weapons drop in a section of each area as if there is one enemy with one chest. That chest holds the ULT weapon for each area listed. The names are the ULT weapons are unique to the character you chose. Whomever the Host/Leader in Multiplayer the ULT weapons will drop only for them and none of the other participants. This is also the only way another character can grab another ULT weapon besides their own. One cannot equip an ULT weapon that is not exclusive to that character. However if you have one just sitting in your inventory for completionist purposes I guess. 😂

Lastly in the Cosmic Rift you can smash the Pentagrams littered in some of the places there. Doing so yield treasure and there is a high probability of Crystal Armor, Robes, and Rings dropping from them. So you need not do a lengthy Dudbear quest to get them. The Crystal Weapons do not drop from them though. ULT and Crystal gear has cr*ppy resale value (1 Lucre) so don’t bother stocking them.

I forgot. The areas where the ULT weapons drop are random in Dudbear or other Subquests late game. So you may need to reload sometimes.