first gen yugioh cards The 10 Most Expensive From Original Yu-Gi-Oh 1996 1st edition Yugioh cards
Description
A lot of balance and care goes into choosing the cost of a card, more than I can express here, but looking for similar effects on existing Magic cards can give you an idea of a fair costfor example, a ramp spell that puts two lands into play ought to cost 4 mana, per Explosive Vegetation

Their sellers page also lists how much you can earn per card based on its condition grade

Everything in this card is broken, it is an absolute bad joke of a card

3 Ho-Oh: Call Of Legends (Shiny Holo Rare) $126.99 Shining Through The Shadows This rare appearance of Shiny Ho-Oh is a treat, as we see another example of Ho-Oh's vibrant wings juxtaposing a darker, mysterious background, much like the Dragons Exalted full art

Pricing Sorted Bulk Complete common/uncommon sets: $8-25 depending on the set (vintage sets at the high end) Era-sorted lots: $30-60 per 1,000 for WOTC, $20-35 per 1,000 for modern Set-sorted lots (incomplete): $15-30 per 1,000 Tier 5: True Bulk What Goes Here After you've pulled out Tiers 1-4, you're left with the bottom of the barrel: unsorted modern commons, uncommons, basic energy cards, and anything else that isn't worth the time to sort further

Comfey You wouldnt necessarily think Comfey would be a particularly popular card in the competitive scene - but it is
