326 Titled Demon Core?

Date- 27 Mar 2321

Time- 16:06

Location- Sky Blossom City, Card stadium, Arena no.2

The mystery to the Smoke monsters immortality lies in the dark red fire covering the arena, the 7th hell: Eternal agony. This was obvious seeing how Corey would choose to not speak about these fires. 

The dark red fire stopped wailing with the disaster rain but it did not get extinguished due to rainwater. It kept burning unhindered. Clearly, it's a special flame with dark attributes and water did not seem to harm it in any way. 

The only time the fire showed any sign of damage was when it came in contact with the residue of the Holy Rainbow beam. Until now have been acting thinking the fire covering the arena is just a field skill but what if this skill has more to it?