The lounge walls will feature energy marks like the "basic energy" and other types found in the card game
Just look at Theater of Horrors, Gutterbones, and the continued theme with Bloomburrow s lizards like Fireglass Mentor
It's a Jinxed Ring from Stronghold, and the shadow of the illustrator's name is misaligned Other Error card examples Sun damage Some cards have coloring errors in certain areas, but its important to be able to tell whether the coloring is caused by sun damage or a printing error

Niv-Mizzet Cycling | Commander | Stephen Johnson Commander (1) 1 Niv-Mizzet Reborn Creatures (30) 1 Archangel of Thune 1 Boros Reckoner 1 Brallin, Skyshark Rider 1 Curator of Mysteries 1 Drannith Healer 1 Drannith Stinger 1 Famished Paladin 1 Flourishing Fox 1 Gavi, Nest Warden 1 Heliod, Sun-Crowned 1 Herald of the Forgotten 1 Igneous Pouncer 1 Jhessian Zombies 1 Nearheath Pilgrim 1 Nimble Obstructionist 1 Niv-Mizzet, Parun 1 Niv-Mizzet, the Firemind 1 Pale Recluse 1 Resplendent Mentor 1 Rooting Moloch 1 Savai Thundermane 1 Shabraz, the Skyshark 1 Snare Tactician 1 Spike Feeder 1 Valley Rannet 1 Psychosis Crawler 1 Sanctum Plowbeast 1 Surly Badgersaur 1 The Locust God 1 Valiant Rescuer Instants (10) 1 Ancient Excavation 1 Barrier Breach 1 Boros Charm 1 Chord of Calling 1 Easy Prey 1 Neutralize 1 Suffocating Fumes 1 Sylvan Reclamation 1 Wilt 1 Zenith Flare Sorceries (4) 1 Grave Upheaval 1 Migratory Route 1 Slice and Dice 1 Treacherous Terrain Enchantments (8) 1 Astral Drift 1 Crystalline Resonance 1 Drake Haven 1 Escape Protocol 1 Happily Ever After 1 New Perspectives 1 Ominous Seas 1 Unpredictable Cyclone Artifacts (12) 1 Abandoned Sarcophagus 1 Aetherflux Reservoir 1 Chromatic Lantern 1 Commander's Sphere 1 Fluctuator 1 Indatha Crystal 1 Ketria Crystal 1 Raugrin Crystal 1 Savai Crystal 1 Sol Ring 1 Sorcerer's Wand 1 Zagoth Crystal Lands (35) 1 Forest 1 Island 1 Mountain 1 Plains 1 Swamp 1 Barren Moor 1 Canyon Slough 1 Command Tower 1 Desert of the Fervent 1 Desert of the Glorified 1 Desert of the Indomitable 1 Desert of the Mindful 1 Desert of the True 1 Drifting Meadow 1 Evolving Wilds 1 Exotic Orchard 1 Fetid Pools 1 Forbidden Orchard 1 Forgotten Cave 1 Indatha Triome 1 Irrigated Farmland 1 Ketria Triome 1 Lonely Sandbar 1 Polluted Mire 1 Raugrin Triome 1 Remote Isle 1 Savai Triome 1 Scattered Groves 1 Secluded Steppe 1 Sheltered Thicket 1 Slippery Karst 1 Smoldering Crater 1 Terramorphic Expanse 1 Tranquil Thicket 1 Zagoth Triome That's a lot of cards

Good luck Twilight
Im not sure I run this outside of such combos, though