the bear is like a golem so use a velonasaur.

Rocket launcher with homing missile works great use rock drake to climb on the wall where he can’t reach you and just keep shooting

Why does this boss act like he is something special. He is harder than the Fenrir Boss.

Why is this guy harder to kill then the final boss?

Don't use rexes trust me, my 1000 melee rexs were doing 94 damage.... it has 300k hp

Use giga! They do wonders for this boss and birng good fur armour

Even though this guy is harder than every other boss on the map even though he is a miniboss, you can cheese him really easily! You only need a velonsaur and grappling hooks. Before you summon him, use the grappling hooks get to a high ledge in the arena and put your velo there, once you summon him, go grapple back to your velo and start shooting him. he cannot reach you. Back up into a safe place when he begins to pile all of his stuff into one ball, that is his ranged attack. after he throws it at you, go back and repeat. He drops 30 element and some nice loot.

The room you fight him in is big enough to place a mech in

It is the Hardest Mini Boss because of his Armor, but I used a High level Velonasaur with melee point and I took him down, an army of magmasaurs or rock golems could probably do it to, maybe a Yutyrannus can improve your chances. Up if you found helpful.