The deck is certainly one of the stronger decks in this article, despite having a very budget manabase that doesn't run any fetchlands
The mana cost of every single card under your control contributes to devotion, including any enchantments, artifacts, or planeswalkers
The DCI, as google tells me, is the governing body behind things like banned cards, restricted cards and the way that the competitive gameplay is governed, and the artwork (done by Maro?) is just a scribbled dude in a blindfold holding a mug of beer tossing darts at cards on a dartboard as a self-deprecating way to show off the "rigorous decision-making process" that the DCI uses to ban a card
If they do, then you traded Isareth for one of their dorks and brought back a cool creature

Bumbleflower Sunscorch Regent Mangara, the Diplomat Realm-Cloaked Giant Twenty-Toed Toad Sphinx of Enlightenment Forgotten Ancient Bloodroot Apothecary Managorger Hydra Rishkar, Peema Renegade Kalonian Hydra Faeburrow Elder Psychosis Crawler Triskaidekaphile Octomancer Chasm Skulker Jolly Gerbils Steelburr Champion Body of Knowledge Jolrael, Mwonvuli Recluse Selvala, Explorer Returned Kwain, Itinerant Meddler Baird, Steward of Argive Spore Frog Coiling Oracle Planeswalkers Tamiyo, Field Researcher Instants Perch Protection Intellectual Offering An Offer You Can't Refuse Peerless Recycling Long River's Pull Illusionist's Gambit Perplexing Test Generous Gift Swords to Plowshares Broken Wings Riot Control Sorceries Promise of Loyalty Wear Down Tempt with Bunnies Tempt with Discovery Secret Rendezvous Cultivate Farseek Enchantments Tenuous Truce Communal Brewing Fisher's Talent Hoofprints of the Stag Rites of Flourishing Simic Ascendancy Wizard Class Martial Impetus Artifacts Ghirapur Orrery Coveted Jewel Thought Vessel Arcane Signet Swiftfoot Boots Fellwar Stone Sol Ring Mind Stone Lands Adarkar Wastes Temple of Enlightenment Seachrome Coast Glacial Fortress Hinterland Harbor Razorverge Thicket Flooded Grove Exotic Orchard Skycloud Expanse Canopy Vista Prairie Stream Brushland Temple of Mystery Yavimaya Coast Overflowing Basin Sungrass Prairie Sunpetal Grove Temple of Plenty Thriving Heath Thriving Isle Evolving Wilds Thriving Grove Terramorphic Expanse Command Tower Reliquary Tower Seaside Citadel 4 Plains 4 Island 4 Forest Tokens Elephant // Squid token Steelburr Champion Offspring // Squid token Rabbit // Octopus token Treasure // Cat token Rabbit // Fish token Bird (Blue) // Fish token Bird (Blue) // Shark token Elemental (4/4) // Shark token Elemental (4/4) // Cat token Poison counter // Rabbit token Squirreled Away decklist MTG Bloomburrow as a set already has a pretty strong reliance on typal theming when it comes to its fuzzy creatures, but Squirreled Away really kicks that up a notch
