Level 10 or higher monsters on the field with Exodia in its original name gains the effect
Sure, you can sell some of your cards for higher prices and possibly make a tidy profit
With this effect, he's likely to fall for Bottomless Trap Hole, but even though he's ATK, can't he activate it
This self-mill artifact doesn't do anything, and the combination of crafting components means you're only running this in a deck specifically built to do exactly this
Agency Outfitter Ajani's Aid Alpine Houndmaster Ashiok's Forerunner Asmoranomardicadaistinaculdacar Avarax Burning-Rune Demon Chandra's Firemaw Domri's Nodorog Elspeth's Devotee Ethereal Elk Garruk's Warsteed Gideon's Resolve Gigantiform Goldmane Griffin Kassandra, Eagle Bearer Llanowar Sentinel Nazahn, Revered Bladesmith Niambi, Faithful Healer Raven Clan War-Axe Rowan's Stalwarts Screaming Seahawk Shaun & Rebecca, Agents Smuggler Captain Sorin's Guide Sun-Blessed Mount Teferi's Wavecaster The First Doctor Tower Winder Visage of Bolas Yanling's Harbinger ther Searcher
Sure, you could build a deck to discard your own cards, but honestly, making your opponent discard is far more fun
