a mighty golem
 

Is this mob spawning in COM? I see very few Maces of the Shadowed Soul being auctioned, and have never heard of it spawning from those that frequent the place. It was a relatively frequent spawn on live if I remember correctly, and could take the place of any normal golem.

I do believe A Mighty Golem was not introduced to CoM until the zone's revamp some years after launch. If I'm not entirely mistaken, MoSS only drops from Lord Ghiosk atm.

Correct.

Mighty Golem isn't classic.