Karen, Undying Night Terror

As an additional cost to cast this spell, for each
player, pay {1}. When Karen, Undying Night
Terror enters the battlefield, choose one —
•Vampires you control that don't have
flying gain deathtouch.
•Vampires you control that don't have
deathtouch gain lifelink.
•Vampires you control that don't have
lifelink gain flying.
"I'd like to speak with your Ruler."