Mettle of the Warrior says your hero heals when playing various cards including Warrior items. For example, your hero gets a heal when playing Pithing Spear.

Victor's ability pulls back the top Hunter card in your graveyard but it does not pull back weapons.

This play is inconsistent. Either Victor's ability needs to also pull back weapons and armors or Mettle of the Warrior should not be healing when playing weapons and armors.