Based on werewolves, Endrings have a tribal majik that cannot be stopped by majik blockers. They use telepathy between pack mates, regardless of species, though it will not work between the non endrings. They can transform into their animal forms at will but the three days surrounding the full moon they have no choice. If one is bitten and turned into an endring, they are what "cursed" them. The parents animal form has no bearing on that of their child.