Here are some general suggestions for success at selling a large number of cards.
1. Pull out all the Ultrarare and Promo cards that you have. Almost all of these have a gold border around them.
2. Check out what those cards are worth by going
here.3. Decide whether you want to sell all the cards as individuals (so individual players will buy them) or in bulk.
a. Individuals: set the price far below what you see at the above site if you want to sell quickly.
1. If a card is worth more than $10, then sell it for 75% of value
2. If a card is worth between $5 and $10, then sell it for 50% of value
3. If a card is worth less than $5, then sell it for $1
b. Bulk: It depends on whether you want your collection to be bought by resellers or playgroup leaders.
1. Resellers: set the price at around half of what the total value of the Ultrarare/Promos are and wait for offers.
2. Playgroup leaders: split the collection into groups of 1000 card sets. Split the Ultrarare/Promos into equal
groups so that each set gets an equal amount. Then post the options on the forum and wait for offers.