Crypt Master Blox Fruits: open the Crypt

The Crypt Master guards the entrance to the Crypt, behind the Mansion on Floating Turtle (Third Sea). He sells nothing and doesn't fight - his sole role is to open the Crypt door for sufficiently advanced players, making him the starting point for the Cursed Dual Katana puzzle. When you approach him, he simply says: "Have you seen the entrance behind this building? It feels cursed..."

How to get it

On Floating Turtle, in Third Sea - go around the Mansion, the Crypt Master stands near the large stone building right behind it. That's the door he opens for you.

What he requires

For him to open the Crypt for you and make the visit worthwhile, you need:

The Crypt Master, who opens the door to the Crypt.

Level 2200 minimum
Yama and Tushita in your possession
350 Mastery or higher, otherwise you won't be able to read the scrolls once inside

His dialogue

Dialogue	When you hear it
Have you seen the entrance behind this building? It feels cursed...	Every time you interact with him
You're not ready to go in there yet.	You don't meet the requirements
I think you can handle it, I can open the way for you if you want. It should be open now, good luck in there	You meet the requirements, the door opens

Notes and tips

You can enter the Crypt using Flash Step without meeting any requirements.
The Crypt Master will even open the door for a player who doesn't have the required Mastery, but in that case the scrolls remain unreadable - the entrance gets you nowhere.
This is where the Cursed Dual Katana puzzle starts.