Oracle

Sorcery 

Gain control of target artifact, creature, or enchantment. Lands you control don't untap during your next untap step.

Tournooi-info

Legal in: Vintage, Legacy, Modern, Commander

Officiele rulings

7/14/2017
The control-change effect of Kefnet’s Last Word lasts indefinitely. It doesn’t wear off during the cleanup step.

7/14/2017
If the target permanent is an illegal target by the time Kefnet’s Last Word resolves, the entire spell doesn’t resolve. Your lands will untap during your next untap step as normal.

7/14/2017
Gaining control of a creature doesn’t cause you to gain control of any Auras or Equipment attached to it. They’ll remain attached, but an Aura’s effect that affects “you” still affects its controller rather than you, the controller of an Equipment can move it during their next main phase, and so on.

7/14/2017
In a multiplayer game, if a player leaves the game, all cards that player owns leave as well, and any effects that give the player control of permanents immediately end.

7/14/2017
No lands that you control will untap during your next untap step, even lands that aren’t tapped as this spell resolves. This includes lands that enter the battlefield after this spell resolves.

7/14/2017
If more than one spell says that lands you control don’t untap during your next untap step, the effects will all wear off during that untap step. You’ll untap lands you control during your untap step after that one.

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