Source: https://ygorganization.com/springtimeformaiwinterforbackrow/

Effective: September 14th, 2020

The next list update will be no sooner than December 14th, 2020.

FORBIDDEN

Block Dragon
Jet Synchron
Mecha Phantom Beast O-Lion

LIMITED

Double Iris Magician
The Phantom Knights of Rusty Bardiche
Called by the Grave
Harpie’s Feather Duster

SEMI-LIMITED

Cir, Malebranche of the Burning Abyss
Graff, Malebranch of the Burning Abyss
ABC-Dragon Buster
Toadally Awesome

UNLIMITED

Makyura the Destructor
Tour Guide From the Underworld
Evigishki Gustkraken
Pantheism of the Monarchs
Sky Striker Mecha – Widow Anchor