winged dragon yugioh card RA05-EN130 - The of Ra - Ultra Rare this card gains ATK and DEF equal to the amount of Life Points paid The Winged Dragon of Ra

The reason it wouldn't have a chance at an 8 would be the silvering and whitening

Prices are updated based upon Magic Beta listings that sold on eBay and other marketplaces

It just uses the word, "Swamp." Another good example is extort, which has the Black and White symbols in the reminder text, or a fetchland like Mountain Valley that clearly is Red and Green in flavor and mechanically, but is allowed in decks without Red or Green

As a beginner seller, or someone who just wants to quickly offload a collection, eBay or Mercari may be your best bet, but it still doesnt hurt to be cautionary about listing upsells