mtg warhammer 40k commander deck list Universes Beyond: 40,000 40K] All 4 Commander Decks

Cards like [c]Imperial Seal[/c] and [c]Demonic Tutor[/c] are typical examples

Pieces like Spellbook, Cathars Shield, Bone Saw, See the Truth, and Surge of Brilliance thrive in a deck like this

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Player A or Player Bs commanders must deal the whole 21 themselves

Of course all rules need to be adjusted according to the deck as exceptions are not so rare