If a creature an opponent controls doesn't qualify for any of the above exceptions and can attack, it must attack a player other than you if able. If the creature can't attack any of those players, or if there are no such players, it must attack you or an opposing planeswalker.
Kardur's last ability will trigger no matter who controlled the attacking creature and no matter who it was attacking.
Kardur's first ability affects all creatures your opponents control, including any that enter the battlefield after the ability resolves.
This printing is one of 3 catalogued treatments from PRM — the lineup includes Foil and Nonfoil alongside the standard finish. Across our catalog the Rarix library tracks every variant in the same family so collectors can compare price, scarcity and demand inside a single lineage.
Card #88378 of *Magic Online Promos*, the promotional run that shipped alongside the February 2021 Magic Online release.
Card type: Legendary Creature — Demon Berserker, color identity black/red, printed at uncommon. Uncommons fill the middle-tier slots in a standard booster configuration. Mana cost: {2}{B}{R} (4 converted).
Legal across the major constructed formats — Modern, Legacy, Vintage, and Commander — plus Standard rotation play.
EDHrec ranks this card #982 in Commander, putting it in the common-include tier of the format's playable pool.
Illustrated by Jeff Miracola. Rarix catalogs 430 other cards credited to this artist.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Jeff Miracola
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
If a creature affected by Kardur's ability could legally attack multiple players and/or planeswalkers, its controller chooses who it attacks.
If a creature an opponent controls can't attack for some reason (such as being tapped or having come under its controller's control that turn), then it doesn't attack. If there's a cost associated with having it attack, its controller isn't forced to pay that cost, so the creature doesn't have to attack in that case either.
