what do the numbers mean on pokemon cards What does this number mean?

Generally speaking you are going to want to look for desperation sales from folks who snapped up boxes looking to crack and flip, only to find that everyone else is doing the same thing and driving prices into the ground

Any spells or abilities on the stack that target a permanent continue to do so after that permanent converts

Each booster contains a total of 15 cards, including 5 cards of rarity Rare or higher and 5 Uncommon, 4 Common, and 1 Land cards

You would be hard pressed to find anyone who doesnt recognize the name Sylvan Library. Much has been written about this crazy Enchantment over the years

And are they valuable