Like most Magic: The Gathering cards, the value of Curiosity Crafter depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Commander 2021)
In short, a charizard card can be worth: $10 (common modern print) $100$1,000 (mid-tier vintage/non-Base Set) $2,000$550,000+ (top-tier vintage first edition in high grade)
In play, there are a few heavy hitters in this set
His transformation is Wedding Crasher, a 6/5 power and toughness werewolf with an axe to grind and a party of ghoulish guests locked in his sights
Alpharael lets you draw two cards, then discard twobut if you control an artifact, you skip the discard
If you resolve three, it will be multiplied by 27, and so on