Falfnir, the First Wolf

Vigilance, Haste
When Flalfnir, the First Wolf is on the battlefield opponents casting spells do not transform other werewolf creatures.
{2}{r/g}: Transform target werewolf creatures you control.
{1}{r}{g}: Target werewolf you control fights target creature you don't control.
{1}{w}{r/g}: Destroy target Artifact.