Shapechanger: The werefrog can use its action to polymorph into a frog-humanoid hybrid or into a frog, or back into its true form, which is humanoid. Its statistics, may change, as well as AC. Any equipment it is wearing or carrying isn't transformed. It reverts to its true form if it dies.

Keen Movement: The werefrog has the ability to leap away from engaged opponents without provoking an attack of opportunity

Wolverine: Using the characteristics of a wolverine frog, it can take its bones and turn them into claws taking 1d4 per level any creatures who witness this horrific sight must make a saving throw or be frightened for three turns. The weapon has a +1 to attack.