This is most impactful for competitive staples that see reprints in starter decks or promotional products
From a cube design perspective, availability of mana fixing is unique in that it affects all of the decks in your environment, excepting mono-colored ones, not just decks in three or more colors

Advanced Search Sets Random Syntax Release date: 2024-10-07 Environmental Sciences Karn, the Great Creator Archon of Emeria Cathar Commando Cathars' Crusade Containment Priest Day of Judgment Deafening Silence Ethersworn Canonist Flickering Ward Iona, Shield of Emeria Kenrith, the Returned King Leyline of Sanctity Path to Exile Prismatic Ending Serra the Benevolent Skyclave Apparition Soul of Theros Spirit of the Labyrinth Stony Silence Temporary Truce Transcendent Master Brain Freeze Consider Daze Displacer Kitten Gitaxian Probe Jace Beleren Mental Misstep Mystical Dispute Narset, Parter of Veils Paradoxical Outcome Ponder Preordain Spell Pierce Treasure Cruise Unnatural Selection Bolas's Citadel Culling the Weak Dead Ringers Faerie Macabre King's Assassin Leyline of the Void Mutilate Pitiless Plunderer Rat Colony Stitcher's Supplier Street Wraith Tendrils of Agony Wishclaw Talisman Worst Fears Ancient Grudge Blazing Rootwalla Chain Lightning Dragon's Rage Channeler Faithless Looting Goblin Guide Rite of Flame Sarkhan, Fireblood Simian Spirit Guide Throes of Chaos Unholy Heat Wish Basking Rootwalla Collector Ouphe Colossal Dreadmaw Elvish Spirit Guide Nature's Claim Noxious Revival Once Upon a Time Sakura-Tribe Elder Seedtime

SR Super Rare Pendulum Paradox X SPELL Add 2 face-up Pendulum Monsters with the same Pendulum Scale, but different names, from your Extra Deck to your hand
You put a card from among them that wasnt cast this way into your hand