All things considered, this is the kind of value we want from a card that costs so much mana
This Card Maker for Pokemon app supports multiple stages of Poke card: EX, GX, V, Vmax, VGold (from Basic, Stage 1, or Stage 2, Mega, Legendary come with your own special rules)
The basic idea is to take advantage of the fact that Naban, Dean of Iteration allows Auratouched Mage to tutor for two auras and attach them to itself to build a potentially game-ending threat for just six mana by finding Eldrazi Conscription and a haste-granting aura like Hammerhand, Cartouche of Zeal, or even Primal Visitation
Having the flexibility to discard a high mana value card you currently cant cast to draw something better and a few turns later putting that card back in your graveyard from exile at instant speed feels like a great mechanic
When you pay this cost one or more times, put that many valor counters on this creature