Notes & Combos
It wasn't easy but reaching Master I is definitely possible with DLINK. This deck allows you to play through multiple interruptions. Up to Master 3, I played a 50-card version of this deck. it was basically this list + 3 Effect Veiler, +1 Rokket Caliber, +1 Infinite Impermanence and -1 Branded Beast.
As regards the extra deck, the only card that wasn't really necessary was Goddess of the Underworld, so you can change it if you want.
An ideal end board would be Seal + Savage + Borrelend + Dis Pater + Regained + Bystial in hand + any other handtrap (hopefully).