Though your child and their friends may have no issue at all with having fake cards, which are more prevalent than you may imagine, they will often be unusable in games, even if they play casually with friends, due to typos, errors and poor print quality
Poor bulk storage can cause corner dings, surface scratches, and warping, which can lower resale and grading value
See the storage guide TCGPlayer sold history gives the clearest picture of what buyers actually pay
Per day
In addition, cards that came from a household with heavy cigarette smoke, or that were stored in a damp attic or garage in the intervening years, can have a lowered value, even if the card physically appears otherwise Near Mint
(2) You can Tribute this card, then target 1 Spellcaster monster in your GY, except Witchcraft Edel