Monsters have ranks attached to them along with their stage. What rank they gain affects their growth and power.
For example, goblins had many ranks, from goblin scouts and warriors to heroes, shamans, and knights, each stronger than the average human of the same level.
At the pinnacle of the goblin ranking, we find the most formidable breed. These are the Goblin Lords, Kings, and Emperors, who possess the unique ability to control and strengthen their race. It is fabled that a Stage 6 Goblin Lord could fight against a Stage 7 knight or warrior with ease.
Not to mention their ability to summon the strongest reinforcements and empower them with just their presence alone. Their leader, the Goblin King, can do all the above. They can summon all his Lords and heroes in their service.
Not to mention the emperor's rank, which has appeared less than twice in the kingdom's history. Both times caused a large amount of destruction and chaos.
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