If you breed two high level dire bear and imprint the baby to 100% this can easily match a giga no joke and if you bring the other two dire bears you will be unstoppable.i have 10 bears all imprinted and I just kill gigas in a matter of seconds.
Was searching a high level doedic with my 450 argent on a server with max lvl 300 wild creatures... Got a bit bored and decided to finish the pursuit "Hunt direbear" I didn't have any metal while searching for the doedic so my terror bird sword and dilophosaur bow were dangerously low on durability... Not that I'd need them I said... My argent kills rexes and doesn't even take any damage I said. I tried killing a 240 bear. It's helath went down to half and my argent's to three quarters. My game crashed, and by the time I came back I saw my argent alive and still attacking and decided to help in the battle with a pike I randomly had on me. The moment I reached the bear to help in the battle I saw my argent flop to the ground as it died. It killed me too and worst thing is I had soothe balm and kibble to tame the doedic and I lost it all and I forgot to take the implant. I tried to get back to my body but failed.... Mad respect for the bears, Kill asap with your best gear or lose it all.