Official Rulings
I have Pitlord (COTA 093) in play and my opponent plays Restringuntus (COTA 094) and chooses house Dis. What happens when I try to declare my house on my next turn?
During the Choose a House step of your next turn, you will be in a position where you must choose house Dis (because of Pitlord’s ability), but also cannot choose house Dis (because of Restinguntus). Cannot effects take precedence over must effects, thus you cannot choose Dis. You may choose either of your other houses.
Source: Rulebook
I have Pitlord (COTA 093) in play and my opponent plays Restringuntus (COTA 094) and chooses house Dis. What happens when I try to declare my house on my next turn?
During the Choose a House step of your next turn, you will be in a position where you must choose house Dis (because of Pitlord’s ability), but also cannot choose house Dis (because of Restinguntus). Cannot effects take precedence over must effects, thus you cannot choose Dis. You may choose either of your other houses.
Source: Rulebook
Commentary
The Play: ability of this card resolves and creates a lasting effect. This effect remains as long as the creature is in play, and the effect does not change if control of the creature changes.
Source: Lasting effects, Magda the Rat
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