Indomitable (2/Day). The champion rerolls a failed saving throw.   Second Wind (Recharges after a Short or Long Rest). As a bonus action, the champion can regain 20 hit points.   Keen Hearing and Smell. The champion has advantage on Wisdom (Perception) checks that rely on hearing or smell.   Shapechanger. The champion can use its action to polymorph into a wolf-humanoid hybrid or into a wolf, or back into its true form, which is humanoid. It's hitpoints are maintained between forms. Any equipment it is wearing or carrying isn't transformed. It reverts to its true form if it dies.