On BattleForge exist many tipes of creature, and this ones are very different among kinds, and sometimes, between there own kind.
The creatures in BattleForge are divided in:
Some abilitys affect some special kind, like Stone Shards, depending on the affinity, it deals 50% more damage to Undead and Demon (Blessed affinity) or Beast (Infused affinity) creatures.
Also some special abilitys are unique to all or some creatures within a kin, like Dragonkin that all of them fly or Forestkin, that most of them have the "Root" ability that activate the "Linked Fire" ability.
Where it appears?
It appears before the role it does (eg. Domitator) and after the charge number.