the bear is like a golem so use a velonasaur.

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

Magmasaurs, gigas, rock golems, and velonasaurs all do pretty good or so ive heard while pretty much anything else cant get past his armor

The bear necessities are not necessary here

I’d recommend something small like deinonychus or carnos

Best way to defeat it is by using many imprinted shadowmanes.

Have the male roar and use females to cloak.

Also use gigas if you have them.

Snow owls also work to heal.

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

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

Use lots of giga and velo on the side and let the giga attack stjbor or grapple on the roof and bring rocket launchers or any thing and shoot him have some Dino like gigas magmasaurs and rock golems to deal damage while you support fire.

This boss has 300k health and has armor as tough as rock elementals so your best choice for taking him out are Gigas once killed it'll drop high quality loot