Like most Pokmon cards, the value of Cinderace 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 (SWSH Black Star Promos)
Getting free mana the same turn you can also drop a land is nothing to sneeze at, no matter the color
The version included in Pokmon Card 151 [SV2a] features a Master Ball pattern over the entire card
This starts to get nuts when you untap cards like [[Barracks of the Thousand]]
In that case, Alela, Cunning Conqueror's last ability triggers once for each player that Faeries you control dealt combat damage to, regardless of how many creatures were dealing that damage
Its relatively expensive at 5 mana, but in Commander and Cube (where this sees play), its a powerful effect