Depends on how many nail upgrades you had when you went there and if you had help from other characters. I went there with 1 nail upgrade and it was impossible I tried for hours cause my cacoon was stuck there, eventually I gave up. Got 1 more upgrade and beat it like 3rd try with no help.

Pot of Greed is really good in sealed and is awful in advanced because it's banned you can't actually play it there.

Manipulator of souls FTK