mtg streets of new capenna card list price Commander Decks when the four other families are out to get you Streets of New Capenna -

While this beefy Dragon initially costs eight mana to cast, it does get cheaper for each card type among permanents you've sacrificed this turn, reliably costing two or three mana less when you go to cast it

Griffin Canyon checks all of those boxes

Legendary Creature - God Color tag templates(None) Third Path Iconoclast Whenever you cast a noncreature spell, create a 1/1 colorless Soldier artifact creature token

So there we have it

Because theyre more restrictive than ramp that produces extra mana, they can be narrower than your average Rampant Growth but often offer much more value to decks willing to meet their restrictions