Parasitic Strix
Artifact Creature — Bird
Flying
When this creature enters, if you control a black permanent, target player loses 2 life and you gain 2 life.
Steven Belledin
Salvat 2011 (PS11)
• #48Rulings
If you don't control a black permanent immediately after Parasitic Strix enters the battlefield, its ability doesn't trigger. If you don't control one as the ability resolves, no player loses or gains life. It doesn't have to be the same black permanent both times, however.
(wotc • 2020-08-07)
Parasitic Strix's ability triggers only once, no matter how many black permanents you control beyond the first.
(wotc • 2020-08-07)
Rulings
If you don't control a black permanent immediately after Parasitic Strix enters the battlefield, its ability doesn't trigger. If you don't control one as the ability resolves, no player loses or gains life. It doesn't have to be the same black permanent both times, however.
(wotc • 2020-08-07)
Parasitic Strix's ability triggers only once, no matter how many black permanents you control beyond the first.
(wotc • 2020-08-07)