Umbral Guardian Elf Wavelength is a social guessing

Wavelength is a social guessing game in which two teams compete to read each other's minds

Mammon has never been ousted during a time when so many other archdevils have lost their positions

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so no two games will be the same

then return that card to the battlefield under your control

Umbral Guardian Elf Wavelength is a social guessingUmbrals are a type of infernal that occupies a distinct niche in the Outer Abyss, benefiting from being able to slip into Caen more easily than others. They possess a special connection to shadows that lets them exploit darkness to serve as gateways. Guardians are often contracted to bind into the shadows of important infernal assets, lurking unseen to await the time they are needed, at which point they spring into action in defense of their charge.