The golem fortress

A structure deep down in the nether with a 5% spawn chance with loot like nether armour and books of enchanting. The structure is similar to the nether fortress but its guarded by hostile iron golem. The golems have armour depending on the loot. There is also a beacon room which has the best loot and is most heavily guarded. The beacon prevents players from building and destroying blocks. Also a new ore only found in the golem fortress that will unleash the true potential of any armour. And there can be golem prisoners that are hostile mobs like the warden and piglins.