Id seen before, but it was pretty limited in allowing non-standard layouts
Holy Avenger gives you free auras when an equipped creature deals combat damage, so dust off your Eldrazi Conscription and Colossification
Today, players can get card sleeves specifically designed for other trading card games like Yu-Gi-Oh
The nonland is important to stop this being too oppressive, and only tracking when opponents stuff comes into play is important for the UW colour identity, as well as preventing the controller just immediately combo-ing off and winning the game on the spot
Description: This Madolche deck focuses on explosive combo plays and strong board control through recursive advantage and powerful Rank 4 Xyz monsters
That said, they will need to make sure they include a lot of legendary permanents, otherwise Sisays activated ability wont be as useful