The owner of this deck hasn't added a sideboard, they probably should...
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Modern mono-colored template, because of the abstract power of scrying sheets, at most splashing one allied colour thanks to the snow duals and Coldsteel Heart. Cards of note could include Into the North, Tolaria West, Emeria, Expedition Map, Corrupt, etc. Plausible support cards are Gelid Shackles, Rimebound Dead, and Chilling Shade, indicating black or white, but blue could use sheet activations to conceal counter magic or draw at end step. (Interesting concept: Wall of Shards activating Punishing Fires?)
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