Moonshae Pixie
{3}{U}Creature — Faerie
Flying
When this creature enters, draw cards equal to the number of opponents who were dealt combat damage this turn.

Creature — Faerie // Instant — Adventure
Creature — Faerie
Flying
When this creature enters, draw cards equal to the number of opponents who were dealt combat damage this turn.
Instant — Adventure
Up to three target creatures gain flying until end of turn. (Then exile this card. You may cast the creature later from exile.)
This card's ability triggers when it enters the battlefield, not when it's cast. Effects that double ETB triggers (like Panharmonicon) work here. Countering the spell prevents the creature from entering, so the ETB won't fire.