Subterranean Beast Tower – Floor 1

Last modification the 2026-03-16 - Format : YYYY/MM/DD

How to complete Floor 1 of the TDB-S?

First Stage: Rory and Oswald

You must defeat these two bosses either with classic DPS or using the “Ezio” technique.
Weapon freezing does not work on them.

Once a boss reaches 40% HP, it becomes invincible.
To remove this state, you need to destroy the Crystals / Totems at the entrance.
There are 3 for each boss.

Totems take 1 point of damage per hit. Increasing your damage does not help you destroy them faster.
Once both bosses are defeated, you can face the final boss of this floor.

Second Stage: Sian

Sian works the same way as the previous two bosses.
For him, at 50% HP, the Totems will appear at the entrance.

Note that he has a passive regeneration of 1% HP per second for 5 seconds, every 20 seconds once he drops below 80% HP.

Moreover, players without aggro will take more damage from the boss’s AoE than the player who has it.
A player without any means of regeneration (for example, a Crusader without special weapons) will be at a big disadvantage on this floor — remember your Archangels!
So don’t waste your entries needlessly.