That's likely due to Tolkien's high-fantasy world being so similar that one could imagine Middle-earth as just another of Magic's many planes

Antiquities Square Cut (Misprinted Back) 1994 - Metal Cards, Press Checks and Production Anomalies Champions of Kamigawa Textless Cards - Metal Cards, Press Checks and Production Anomalies Fallen Empires (Wyvern Back) 1994 - Metal Cards, Press Checks and Production Anomalies Green Scrap Sheet (MTG Back) - Metal Cards, Press Checks and Production Anomalies Metal Cards - Metal Cards, Press Checks and Production Anomalies Mirage Japanese (Amstel Beer Back) - Metal Cards, Press Checks and Production Anomalies Nemesis Textless Cards - Metal Cards, Press Checks and Production Anomalies Number Cards (From Fifth Edition Simpliflied Chinese Boosters) 1998 - Metal Cards, Press Checks and Production Anomalies Pokemon German Cards Square Cut (MTG Back) 1999 - Metal Cards, Press Checks and Production Anomalies Scourge Theme Decks (Harry Potter Back) 2003 - Metal Cards, Press Checks and Production Anomalies Unlimited (Unlimited - Antiquities back) With Round Corners 1993-1994 - Metal Cards, Press Checks and Production Anomalies Urza's Destiny Textless Common Cards (Round Corners) 1999 - Metal Cards, Press Checks and Production Anomalies Urza's Destiny Textless Uncommon Cards (Round Corners) 1999 - Metal Cards, Press Checks and Production Anomalies Urza's Destiny Textless Rare Cards (Round Corners) 1999 - Metal Cards, Press Checks and Production Anomalies Urza's Destiny Textless Promos 1999 - Metal Cards, Press Checks and Production Anomalies Urza's Saga / Fourth Edition Textless Promos 1999 - Metal Cards, Press Checks and Production Anomalies

Toon Briefcase X TRAP When your opponent Summons a monster(s) while you control a Toon monster: Shuffle that monster(s) into the Deck
There is an amazing amount of great design work outside of the booster releases, but I am but one man with one column, so I'm going to talk today about the booster releases
Grab two boosters shuffle them together and youre ready to go