One honest limit: no tool can read a deck's Bracket 5 (cEDH) intent from a list alone, because cEDH is about tournament tuning and a competitive metagame, not just card choices
It's quite interesting that because MTG has such a long history, there are many pieces of equipment that are usually ignored, and they become key cards in a 10,000 yen build
Going further, you can grab yourself a deck box and sleeves for todays big release

Dragon Little Winguard Gearfried the Iron Knight Time Wizard Copycat Legendary Sword Stray Lambs Polymerization Polymerization Graceful Dice Sogen Dicephoon Kunai with Chain Red-Eyes Spirit Skull Dice Flame Swordsman Alligators Sword Dragon Thousand Dragon YAMI YUGI DECK Feral Imp Legion the Fiend Jester Legion the Fiend Jester Rogue Doll Rogue Doll The Stern Mystic Dark Magician Girl Double Coston Blue Dragon Summoner Dark Magician Dark Magic Attack Sages Stone Tribute Doll Riryoku Thousand Knives Wonder Wand Seven Tools of the Bandit Lightforce Sword Magicians Circle Magic Jammer PEGASUS DECK Toon Summoned Skull Toon Alligator Toon Alligator Toon Masked Sorcerer Toon Masked Sorcerer Rogue Doll Dark Rabbit Toon Mermaid Relinquished Parrot Dragon Toon World Toon World Sword of Deep Seated Toon Rollback Toon Table of Contents Black Illusion Ritual Yami Wild Tornado Jar of Greed Toon Defense SETO KAIBA DECK Twin-Headed Behemoth Spirit Ryu Lord of D

Association with Rarity This final category ties into the fact that Magic is a game that's been around for a long time
Greatly enhancing existing "Supernovas" and "Donquixote Family" themes