Back way when, Wizards didn't really make sure that there were ENOUGH playable limited cards in the common slots for sets (no one was playing much limited before the inception of the Pro Tour, around the release of Ice Age ), so horribly unplayable cards like Snowfall and Balduvian Shaman glutted the common slots of packs - and commons are where most of the meat of your limited cardpool comes from
Fingerprint Shielding : The dual layers act as an enhanced barrier, preserving the card surface from oils and dirt, thus maintaining its condition and resale value
I would give cards to kids when I did shows, because that is how I got started, and I think its kinda neat to now do it myself
PS Platinum Secret Rare QCSE Quarter Century Secret Rare Artifact Moralltach X LIGHT Level 5 [ FairyEffect ] ATK 2100 DEF 1400 You can Set this card from your hand to your Spell & Trap Zone as a Spell
There are four new sets added each year, and every year when the autumn set releases the oldest four drop out - a process called rotation