What was the reason for Kritias anyway?

You know thinking after i just posted this, i realized more about it, but still confused why Black Mage would care for the city to even seal it...

If I remember correctly from Morass:

The Black Mage showed up at Kritias after Tana displayed her full power by cursing Hekaton. He wanted to use her for his future plans, so he sealed Kritias away with Tana still inside it to conceal her existence. He released Kritias and Tana when he was ready to lead her to Arcane River so he could absorb her power. The real reason he ordered his commanders to attack Kritias was to destroy any evidence of Tana's existence there.


As for the purpose of Kritias in the lore before they created Tana, I think it's anyone's guess. It had no real recorded history or interaction with any other location in the game and there was some conflicting information, I believe at one point they stated the Black Mage himself was residing in Trueffet, which made no sense because why would his commanders try to attack the town that he was residing in?

Ultimately it would seem Nexon themselves had no idea what to do with it in the end and made it part of Tana's backstory.