| 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. |
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