I asked the battle admins to do a news post or a banner announcement, but since that looks like it isn't happening # news is the 2nd best bet.
The 2am SubetaTime wave of the boss was originally released bugged. It had way too little health and was killed in a few minutes.
It has since been RE-RELEASED. As of -this ping- (edit: ~3am ST) it is available to fight. It might actually have a little too much health, waiting on Battle Admin confirmation since ~2:30.
To do the boss step: Make sure you've beaten or skipped all 4 puzzles (one was released yesterday!) then visit the Tomb (room at the end of the hall, or click here) and you should see the challenger!
Go fight it! (if you want to, of course :p)
Edit: Was still seeing confusion in the news comments and SB based of the old bugged boss release, hence the ping. Sorry for any peeps not focusing this wave!
Thanks for the info.
Formerly known as its_just_me
(I started in March)
Wine is the answer
What was the question?
You should add the link to the Tomb so they can get him as a challenger just in case they didn't before ;)