I haven't worked out the strategy yet, but there are multiple paths you can take. For one, you can swarm the field to synchro spam, two, you can abuse XX-Saber Grottoms' effect to leave your opponent empty-handed, or three, beat down. However you want to play, I hope this deck helps you.
There are many cards in this deck that you MUST have. XX-Saber Faultoll can summon from the grave over and over, Boggart Knight can summon another X-Saber from your hand, then you can summon Faultoll, Emmersblade to float into Darksoul to search or Ragigura to grab an X-Saber from the GY. Like Faultoll. Loooooooooooop