how do i get key for jevil fight

[Astro]

i want to fight jevil so can you help me find the key or what do i do to unlock the door

[CalokAndQkourQcuarante]

Key part A: Go back and talk to Seam the shopkeeper. There'll be a new dialogue option for you.

Key part B: Go to the Scissor Dancer area and "walk where the stars don't shine" You should see the shape of a path that's purely dark where the stars don't crossover. It starts in the southwest of the area.

Key part C: Go northeast of the field in the area before the Great Board. You'll find a card puzzle where you have to put in 4 suits in the order you go through the rooms in Card Castle from bottom to top: Diamond, Heart, Club, Spade.

[WheatlyQuirrel]

After getting all key parts, go to the bake sale and get the hammer guy to fix the key. Also make sure to stock up on healing items. You'll need them.