A wolverine is a predatory animal and a member of the weasel family. Wolverines live in colder climates and are known for their ferocity and strength. Wolverines were denoted as unclean animals according to Hebrew custom.
Positive: Dreaming of a wolverine could represent that God has given you tenacity to handle certain situations. Dreaming of Wolverine from X-Men helping you fight could represent that God is sending supernatural might to assist you.
Negative: Seeing a wolverine in a dream could represent a person who does not keep their word. If a wolverine is attacking you in a dream, it could represent a fierce attack from the enemy is coming in a small way.