The Floor 10 portal dropped them into a cathedral of violence.
The arena was a perfect circle of black obsidian, its surface polished to a mirror sheen that reflected the swirling veil above. The ceiling opened to a void of churning mist... silver and grey, shot through with veins of darker something that moved like living things. The veil here was not gas or fog but nearly liquid, dense enough that Nathan felt it pressing against his skin, cold and faintly electric.
At the center stood the Veil Tyrant... twenty feet tall, a colossus of silver light and shadow. It had two faces (one facing each party) and four arms, each with a different
weapon: a fiery sword, a mist spear, a star-like hammer, and a chain dripping molten silver. It breathed, and the veil breathed with it.
[Ding! Floor 10: Final Chamber.]
[Each party: choose two combatants. Others in support zones.]
[Defeat the Tyrant before party vs party combat.]
