Glorious Favor

Enchanted creature has renown 1. When you cast Glorious Favor, you may pay {x}. If you do, enchanted creature has renown X.
{r}{r}: Return Glorious Favor to your hand. You may only use this ability when enchanted creature is being removed from the battlefield.
The only omen is that of the battlefield.
Inspired by Indra the Firebird by Corwinnn.