Magic Fang

Source magic fang

The spell affects an additional number of the target's natural weapons equal to your tier. For example, if you're 3rd tier, it could affect two claws and one bite).

Magic Fang, Greater

Source magic fang, greater

This functions like mythic magic fang. You can add one of the following weapon special abilities to natural attacks or unarmed strikes affected by the spell: flaming, frost, keen, merciful, shock, or thundering. You must choose only one with each casting of the spell. For example, you can't add flaming to a tiger's bite and keen to its claws with the same casting. If the target has an Intelligence score less than 3, these abilities are always on (the target can't activate or deactivate the effect) and it might react with fear if its attacks make noise or create visible energy.

Augmented (5th): If you expend two uses of mythic power, you can reduce the granted enhancement bonuses by 1 to add two of the above abilities or one of the following abilities: flaming burst, icy burst, or shocking burst.