Sure, you have to sacrifice this card in order to get that extra turn but combine this with some enchantment or permanent recursion/reanimation, and youve got the makings of an easy infinite turn loop
Quantum Quandrix Planeswalker (1) 1 Garruk, Primal Hunter Creature (28) 1 Esix, Fractal Bloom 1 Curiosity Crafter 1 Deekah, Fractal Theorist 1 Spawning Kraken 1 Guardian Augmenter 1 Ruxa, Patient Professor 1 Desolation Twin 1 Champion of Wits 1 Crafty Cutpurse 1 Reef Worm 1 Arashi, the Sky Asunder 1 Forgotten Ancient 1 Hornet Nest 1 Hornet Queen 1 Hydra Broodmaster 1 Incubation Druid 1 Kazandu Tuskcaller 1 Managorger Hydra 1 Rampaging Baloths 1 Terastodon 1 Kaseto, Orochi Archmage 1 Master Biomancer 1 Biomathematician 1 Quandrix Cultivator 1 Zimone, Quandrix Prodigy 1 Coiling Oracle 1 Plaxcaster Frogling 1 Trygon Predator Sorcery (12) 1 Replication Technique 1 Oversimplify 1 Curse of the Swine 1 Rite of Replication 1 Ezuri's Predation 1 Shamanic Revelation 1 Spitting Image 1 Golden Ratio 1 Kodama's Reach 1 Nissa's Expedition 1 Rampant Growth 1 Incubation // Incongruity Instant (9) 1 Commander's Insight 1 Perplexing Test 1 Theoretical Duplication 1 Return of the Wildspeaker 1 Biomass Mutation 1 Eureka Moment 1 Rapid Hybridization 1 Beast Within 1 Krosan Grip Artifact (7) 1 Fractal Harness 1 Sequence Engine 1 Geometric Nexus 1 Idol of Oblivion 1 Arcane Signet 1 Simic Signet 1 Sol Ring Enchantment (2) 1 Paradox Zone 1 Primal Empathy Land (40) 1 Exotic Orchard 1 Lumbering Falls 1 Mosswort Bridge 1 Oran-Rief, the Vastwood 1 Temple of Mystery 1 Yavimaya Coast 1 Quandrix Campus 1 Study Hall 1 Blighted Woodland 1 Command Tower 1 Llanowar Reborn 1 Lonely Sandbar 1 Myriad Landscape 1 Novijen, Heart of Progress 1 Opal Palace 1 Rogue's Passage 1 Simic Growth Chamber 1 Temple of the False God 1 Tranquil Thicket 11 Forest 10 Island Blue (13) 1 Commander's Insight 1 Curiosity Crafter 1 Deekah, Fractal Theorist 1 Perplexing Test 1 Replication Technique 1 Spawning Kraken 1 Theoretical Duplication 1 Champion of Wits 1 Crafty Cutpurse 1 Curse of the Swine 1 Reef Worm 1 Rite of Replication 1 Rapid Hybridization Green (24) 1 Fractal Harness 1 Guardian Augmenter 1 Paradox Zone 1 Ruxa, Patient Professor 1 Sequence Engine 1 Arashi, the Sky Asunder 1 Ezuri's Predation 1 Forgotten Ancient 1 Garruk, Primal Hunter 1 Hornet Nest 1 Hornet Queen 1 Hydra Broodmaster 1 Incubation Druid 1 Kazandu Tuskcaller 1 Managorger Hydra 1 Rampaging Baloths 1 Return of the Wildspeaker 1 Shamanic Revelation 1 Terastodon 1 Beast Within 1 Kodama's Reach 1 Krosan Grip 1 Nissa's Expedition 1 Rampant Growth Multi colored (16) 1 Esix, Fractal Bloom 1 Oversimplify 1 Biomass Mutation 1 Kaseto, Orochi Archmage 1 Master Biomancer 1 Spitting Image 1 Biomathematician 1 Eureka Moment 1 Golden Ratio 1 Quandrix Cultivator 1 Zimone, Quandrix Prodigy 1 Coiling Oracle 1 Incubation // Incongruity 1 Plaxcaster Frogling 1 Primal Empathy 1 Trygon Predator Colorless (46) 1 Geometric Nexus 1 Desolation Twin 1 Idol of Oblivion 1 Exotic Orchard 1 Lumbering Falls 1 Mosswort Bridge 1 Oran-Rief, the Vastwood 1 Temple of Mystery 1 Yavimaya Coast 1 Quandrix Campus 1 Study Hall 1 Arcane Signet 1 Simic Signet 1 Sol Ring 1 Blighted Woodland 1 Command Tower 1 Llanowar Reborn 1 Lonely Sandbar 1 Myriad Landscape 1 Novijen, Heart of Progress 1 Opal Palace 1 Rogue's Passage 1 Simic Growth Chamber 1 Temple of the False God 1 Tranquil Thicket 11 Forest 10 Island 1 (3) 1 Rapid Hybridization 1 Incubation // Incongruity 1 Sol Ring 2 (11) 1 Geometric Nexus 1 Curse of the Swine 1 Incubation Druid 1 Kazandu Tuskcaller 1 Biomass Mutation 1 Idol of Oblivion 1 Zimone, Quandrix Prodigy 1 Rampant Growth 1 Coiling Oracle 1 Arcane Signet 1 Simic Signet 3 (17) 1 Commander's Insight 1 Theoretical Duplication 1 Fractal Harness 1 Guardian Augmenter 1 Sequence Engine 1 Champion of Wits 1 Hornet Nest 1 Managorger Hydra 1 Kaseto, Orochi Archmage 1 Biomathematician 1 Golden Ratio 1 Beast Within 1 Kodama's Reach 1 Krosan Grip 1 Plaxcaster Frogling 1 Primal Empathy 1 Trygon Predator 4 (9) 1 Curiosity Crafter 1 Ruxa, Patient Professor 1 Crafty Cutpurse 1 Reef Worm 1 Rite of Replication 1 Forgotten Ancient 1 Master Biomancer 1 Eureka Moment 1 Quandrix Cultivator 5 (10) 1 Deekah, Fractal Theorist 1 Perplexing Test 1 Replication Technique 1 Paradox Zone 1 Oversimplify 1 Arashi, the Sky Asunder 1 Garruk, Primal Hunter 1 Return of the Wildspeaker 1 Shamanic Revelation 1 Nissa's Expedition 6 (5) 1 Esix, Fractal Bloom 1 Spawning Kraken 1 Hydra Broodmaster 1 Rampaging Baloths 1 Spitting Image 7 (1) 1 Hornet Queen 8 (2) 1 Ezuri's Predation 1 Terastodon 10 (1) 1 Desolation Twin Common (32) 1 Biomathematician 1 Eureka Moment 1 Quandrix Campus 1 Study Hall 1 Kodama's Reach 1 Rampant Growth 1 Coiling Oracle 1 Arcane Signet 1 Simic Signet 1 Command Tower 1 Opal Palace 11 Forest 10 Island Uncommon (21) 1 Golden Ratio 1 Quandrix Cultivator 1 Zimone, Quandrix Prodigy 1 Rapid Hybridization 1 Beast Within 1 Krosan Grip 1 Nissa's Expedition 1 Incubation // Incongruity 1 Plaxcaster Frogling 1 Primal Empathy 1 Trygon Predator 1 Sol Ring 1 Blighted Woodland 1 Llanowar Reborn 1 Lonely Sandbar 1 Myriad Landscape 1 Novijen, Heart of Progress 1 Rogue's Passage 1 Simic Growth Chamber 1 Temple of the False God 1 Tranquil Thicket Rare (43) 1 Commander's Insight 1 Curiosity Crafter 1 Deekah, Fractal Theorist 1 Perplexing Test 1 Replication Technique 1 Spawning Kraken 1 Theoretical Duplication 1 Fractal Harness 1 Guardian Augmenter 1 Paradox Zone 1 Ruxa, Patient Professor 1 Sequence Engine 1 Oversimplify 1 Geometric Nexus 1 Desolation Twin 1 Champion of Wits 1 Crafty Cutpurse 1 Curse of the Swine 1 Reef Worm 1 Rite of Replication 1 Arashi, the Sky Asunder 1 Ezuri's Predation 1 Forgotten Ancient 1 Hornet Nest 1 Hornet Queen 1 Hydra Broodmaster 1 Incubation Druid 1 Kazandu Tuskcaller 1 Managorger Hydra 1 Rampaging Baloths 1 Return of the Wildspeaker 1 Shamanic Revelation 1 Terastodon 1 Biomass Mutation 1 Master Biomancer 1 Spitting Image 1 Idol of Oblivion 1 Exotic Orchard 1 Lumbering Falls 1 Mosswort Bridge 1 Oran-Rief, the Vastwood 1 Temple of Mystery 1 Yavimaya Coast Mythic (3) 1 Esix, Fractal Bloom 1 Garruk, Primal Hunter 1 Kaseto, Orochi Archmage Learn more about the Quantum Quandrix decklist here
Another card I did consider for this slot is Cryptolith Rite, as this is a strong effect, especially for token decks
But its such a powerful combo piece that it deserves to be on the list
