If a creature an opponent controls enters the battlefield at the same time that Kinjalli's Sunwing enters the battlefield under your control, Kinjalli's Sunwing's effect doesn't apply to your opponent's creature.
Legalitet:
Standard: Ej legal
Pioneer: Legal
Modern: Legal
Legacy: Legal
Vintage: Legal
EDH / Commander: Legal
Pauper: Ej legal
Explorer: Legal
Historic: Legal
Brawl: Ej legal
Premodern: Ej legal
93/94: Ej legal