The only true one card combo in the deck. You don't want to rely on Witch of the White Forest unless you are forced to as it cuts you off from the Azaminas and Dragoon. So, only do this combo when you have no other option.

The endboard is still strong and somewhat layered. Diabellze gives your monsters protection from destruction by card effect. Diabell and Diabellstar both cheat out Tuner Synchros and Diabellstar also gets a pop. White Forest Synchros are the deck's main interruptions. Poplar of the White Forest lets you quick synchro on your opponent's turn (normally into Snake-Eyes Vengeance Dragon or Baronne) and Silvera, Wolf Tamer of the White Forest books all your opponent's monsters. You can also summon Rciela to search Effect Veiler.

The Sinful Spoils S/T adds some versatility for the endboard. Sinful Spoils of the White Forest lets you fuse into Azamina Ilia Silvia (using Silvy from the GY + Diabell or Diabellze) or Guardian Chimera (using an elzette that you add back from the GY). Your other option is Sinful Spoils of Slumber - Morrian which just lets you book a special summoned monster. It is a more resilient option because it doesn't rely on having monsters in the hand and field.