Curiosa currently catalogues 87 trading cards items at rarity 5 or higher
The scheme is a cooperation with New Jersey, US-based TerraCycle, a firm that describes itself on its site as "the world's leader in the collection and reuse of non-recyclable post-consumer waste"
Lastly, the crimping machine can sometimes even cut a piece off the card
If something seems off, or there are more red flags than you could possibly shake a stick at, move on
$4.99 Kessig Flamebreather Innistrad: Crimson Vow $0.35 Electrickery Return to Ravnica $1.79 Tandem Lookout Avacyn Restored $1.49 Curiosity Innistrad $21.99 Quicksilver Elemental Mirrodin $1.49 Curiosity Jumpstart $1.99 Curiosity (0017) Wilds of Eldraine Enchanting Tales $2.29 Coruscation Mage Bloomburrow $4.99 Gitaxian Probe New Phyrexia $16.99 Ophidian Eye Time Spiral $0.49 Risky Shortcut Aetherdrift $8.99 Helm of the Ghastlord Shadowmoor 0 results found
The best guideline would be that a damaged card that is clearly still tournament legal should be graded Light Played, and one clearly not tournament legal would be Poor