I apologize, but it seems that “Slithering Worm – Masked Duels” is not a known game or concept. It’s possible that you may have a different game title in mind or it may be a fictional game. Without specific information about the mechanics, objectives, or rules of the game, it is challenging for me to provide a detailed strategy guide.
If you have any additional information or if there is another topic or game you’d like assistance with, please let me know, and I’ll be happy to help you.