First time i found this

I have been playing the game for years, i think it had to do with me sacrificing weapons to some pond, i only sacrificed pills though...

The event brought 2 strange boss fights and a map full of strange black goo which sucks you in a little and slows you down alot. I dont know if this was a thing for a long time but this is the first time i found this...

( Also the second screenshot has a strange orange outline in the shape of my character after the second boss fight, i dont know why )

Beating the first boss fight gave me a second portal (which i took naturally as a curious gamer) and beating the second one gave me a random buff...

The reason why these boss fights are strange is because it shows the normal enemies getting stronger from some god(-ess) in a cutscene before the boss's title screen...

You also get normal rewards like skin fragments alongside the strange rewards...

Next time i get this event i will screenrecord the whole thing and post it on this subreddit...