Ringwarden Owl

Card Name

Ringwarden Owl

Mana Cost

3

Type

Creature – Bird

Rarity

Common

rules Text

Flying (This creature can't be blocked except by creatures with flying or reach.)Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Flavor Text

The owls learn of mana from the mages who know it best.

Legal Formats

Commander, Legacy, Modern, Pauper, Pioneer, Vintage

Not Legal Formats

Alchemy, Brawl, Explorer, Historic, Standard

Rulings

(6/22/2015)
Any spell you cast that doesn't have the type creature will cause prowess to trigger. If a spell has multiple types, and one of those types is creature (such as an artifact creature), casting it won't cause prowess to trigger. Playing a land also won't cause prowess to trigger.
(6/22/2015)
Prowess goes on the stack on top of the spell that caused it to trigger. It will resolve before that spell.
(6/22/2015)
Once it triggers, prowess isn't connected to the spell that caused it to trigger. If that spell is countered, prowess will still resolve.