Highlander Mage has seen its popularity crumble after the nerfs to Conjurer’s Calling and Luna’s Pocket Galaxy. However, it is still a decent deck for climbing, and replacing King Phaoris with N’Zoth, the Corruptor can help the archetype find a more steady footing for maintaining its health total without compromising on threats.
The main neutral Deathrattle minions – SN1P-SN4P, Rotten Applebaum, Cairne Bloodhoof, Khartut Defender, and Sylvanas Windrunner – form a good package for N’Zoth, and they are useful minions for Mage overall, helping Mage defend themselves, heal, generate some threats, and even steal some of the opponent’s good minions: Sylvanas Windrunner and Conjurer’s Calling is a scary late-game combo.
N’Zoth allows Mage to cut down the number of expensive spells needed to support Phaoris in favor of influential midgame minions, making the deck more proactive and more capable of getting on the board.
Mage is also one of the classes that can deny resurrects from the opponent thanks to Polymorph, giving them an edge in the upcoming Deathrattle showdowns.