Before you put 20 cards in Card Savers and ship them off, spend five minutes scanning every single one and looking at the numbers
Purrloin's Thieving Swipe attack also has the effect of allowing you to choose a card from your opponent's hand and place it at the bottom of their deck

#0001 "Blue-Eyes White Dragon" #0002 "Mystical Elf" #0003 "Hitotsu-Me Giant" #0004 "Baby Dragon" #0005 "Ryu-Kishin" #0006 "Feral Imp" #0008 "Shadow Specter" #0009 "Blackland Fire Dragon" #0010 "Swamp Battleguard" #0011 "Tyhone" #0012 "Flame Swordsman" #0013 "Time Wizard" #0018 "Exodia the Forbidden One" #0019 "Summoned Skull" #0020 "The Wicked Worm Beast" #0021 "Skull Servant" #0022 "Horn Imp" #0023 "Battle Ox" #0024 "Beaver Warrior" #0025 "Rock Ogre Grotto #1" #0026 "Koumori Dragon" #0027 "Two-Headed King Rex" #0028 "Judge Man" #0029 "Saggi the Dark Clown" #0030 "Dark Magician" #0031 "The Snake Hair" #0032 "Gaia the Dragon Champion" #0033 "Gaia The Fierce Knight" #0034 "Curse of Dragon" #0035 "Celtic Guardian" #0036 "Illusionist Faceless Mage" #0037 "Rogue Doll" #0038 "Griffore" #0039 "Torike" #0040 "Sangan" #0041 "Big Insect" #0042 "Armored Lizard" #0043 "Hercules Beetle" #0044 "Gokibore" #0045 "Giant Flea" #0046 "Kuriboh" #0047 "Mammoth Graveyard" #0048 "Great White" #0049 "Wolf" #0050 "Harpie Lady" #0051 "Harpie Lady Sisters" #0052 "Tiger Axe" #0053 "Silver Fang" #0054 "Kojikocy" #0055 "Thousand Dragon" #0056 "Fiend Kraken" #0057 "Jellyfish" #0058 "Giant Soldier of Stone" #0059 "Krokodilus" #0060 "Grappler" #0061 "Axe Raider" #0062 "Uraby" #0063 "Crawling Dragon #2" #0064 "Red-Eyes B

The combination of discard, counterspell, direct damage, and recursion means that youll usually have the right tools for the job, especially if the game goes long
WORLDBUILDING, NARRATIVES, AND UNFORGETTABLE CHARACTERS EXPLORE THE MULTIVERSE The world of Magic is a Multiverse: an endless expanse of different worlds called planes, each with its own heroes, villains, stories, and mysteries
What this sets up There are now ~34,000 unique Magic card designs