Aura of Courage, on the other hand, often failed due to low creature count and early boardwipes, sometimes even without being able to really counter other (faster) decks with their high density of creature cards
If it does end up in one of the top-tier decks, then it will sustain the $12-15 range at the end, and if not, then it'll drop even further to about $7-8 per card
Its also an excellent reanimation target as it often brings another creature with it, especially in Commander
This story ended more abruptly than most, so it has many loose ends
Or maybe you're still searching for a second source of blue mana
It can be countered, and any abilities that look for spells cast (such as cascade, if that spell has cascade) can see it