A high lvl pack of Allos can maul just about anything on the Island, even Titanos and Gigas with planning and hit and run tactics.

Since the bleed delt by the lead Allo deals percentage damage, it can kill anything in around 20 hits aside from bosses as long as the hits are spaced out (wait for bleeding effect to stop before biting again). Breed a small army of these and nothing can really stop you that you can’t bleed to death (though expect losses). Their pack buff lets them handle things like Rexes with ease and when leveled and mutated for health and damage, you don’t even need to use hit and run to take on Alphas and Gigas as they can tank hits long enough to kill them.

I do NOT advise them for most bosses though, bleed has zero affect and all though their DPS is high when boosted in a pack, they are still much squishier than a Rex and will fall quickly to things like an Alpha Dragon.