Abyss

 Abyss Saber

 Abyss Visor

 Abyssmash

Equipment :

 Abyss Visor

 Advent Deck

Contract Monster :  Abyssodon

Advent Cards :

 Advent - Abysslasher

Final Vent - Abyss Dive

Strike Vent - Abyssmash

Sword Vent - Abyss Saber