Duskmourn schemes, like past schemes, are only legal in Archenemy games, in the archenemy players scheme deck. Scheme cards cant go in your regular Magic decks or be used in any other official Magic formats
This card is awesome, and were just getting started
But come on, Wizards , give this bruiser trample
Much of Jan Jansen's strength, though, comes from his potential as an Aristocrats commander
Its an excellent aristocrat, and all the more so when paired with mass reanimation like Zombie Apocalypse since you can sac your entire board before bringing everything back
No ward, no hexproof, just exposed and out in the open like a true Viking warrior