You have sworn a pact to yourself to represent one type of animal and forsake all others.Prerequisite:
1st level Druid, Breath of the BeastBenefit:
Instead of choosing multiple animals to bond to you focus exclusively on bonding with one specific kind of animal. When you have an amount of hit dice in your totem bond pool that exceeds the specific animals base hit dice, you are able to advance the animal as per the standard monster advancement rules by expending one hit die from the pool per hit die advancement.
> The character has an alternate option not to advance the animal, but instead gain multiple totem companions of the same type of animal when she gains the totem companions class feature. The druid 'pays' for the cost of each additional totem companion of the same type by sacrificing an amount of hit dice from her totem bond class feature equal to the amount of hit dice that the animal has. Through this alternate option the character can 'pay' for dire or giant variants of the base animal they are bonded to, possibly using the dire/giant animal as a mount.