Warchief is a Force affinity legendary from the Skinwalker faction. Warchief had some strong Clan Boss utility however reflect damage was badly nerfed. This made him basically a vault lord until Doom Tower was released in December 2020. Warchief is Top Tier against Kuldath the Magma Dragon, able to keep him provoked 100% of the time. This stops the Magma Dragon from being to use his hard hitting abilities!
In Patch 4.70, Warchief received a small buff with his A2 being reduced by 1 turn cooldown – honestly it doesn’t really impact his ability to provoke that much more.