You can get better deals out there, but four cascades means youre getting at least four cards out of Apex Devastator
Price Range: As with the Shichifukujin Dragon, this is a unique card, so it is hard to label it anything other than priceless
Illustrated by Yuchi Yuki Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Legal Modern Not Legal Brawl Legal Legacy Legal Comp
The Unlimited version of the same Charizard is worth far less: $10,000 at PSA 10 and $800 at PSA 9
Purchase at your own risk
The opposite end is a strict adherence to a formula, for example, every deck needs ten ramp pieces and ten card drawing spells. That may be a fine way to play for you, but those twenty cards would interfere with another decks gameplan