Charizard ex SAR SV3 Ruler of the Black Flame SAR Market ~$450-$700 USD (~63,000-98,000) The defining SAR of the early Scarlet & Violet era
Its like an extremely powerful Planeswalker ability, except it happens every turn from now on, and cant be attacked or destroyed by most conventional means
Today, a high-grade first edition Blastoise is worth far more than what most families spent on Christmas gifts in the 1990s
For serious sellers, the best advice I can give you is to research and track market trends using the online tools I provided to chart sales history regularly, so you can set optimal pricing for your cards
It's very powerful once this becomes Ajani, Nacatl Avenger, especially in a cat deck
If there's a cost associated with having it attack, you're not forced to pay that cost, so it doesn't have to attack in that case either