This number has gone up massively in recent years, partly because Magic has started to produce more and more products in recent years, but also because of a pretty big uptick in special collaboration sets like Universes Beyond: The Lord of the Rings Tales From Middle-earth and the Universes Beyond: Doctor Who sets
Magic: The Gathering cards without their backs, Wizards of the Coast gives a limited number of artist proofs to each card's illustrator, which they can then sign and sell or simply give away
As the Phantom Knights player, you can combat this deck by removing Numeron Network as Numerons have a hard time getting the OTK without their Field Spell in play
Main Deck 42 Decoy Dragon X FIRE Level 2 [ Dragon / Effect ] ATK 300 DEF 200 If this card is targeted for an attack: Target 1 Level 7 or higher Dragon monster in your GY
Black Feather Beacon X TRAP Activate only when you take damage from a card effect
Cards like Alternate Art Rayquaza from Evolving Skies that sell raw for around $130 can fetch $500+ in a PSA 10 casemaking grading worthwhile if the condition is pristine