Where can I find the betrayal sword and turtle shells?

anyone pls help!!!!

For Betrayal Sword you can refine a Forbidden card with Quezacotl’s Card Mod ability. Maybe you can mug some from Forbiddens or maybe they drop them. I don’t remember very well. You can find Forbiddens at Odin’s Tower. For Turtle Shells you can refine 3 Adamantoise cards to 1 Turtle Shell. You can also mug or make them drop. You can find Adamantoises in many shores but they have to be at low level cause you may also get Whispers or Adamantines. There is a shore with Adamantoises near Kashkabald Desert and one at the opposite site of Dollet near the forest with the monkey if I’m not mistaken.