Simple cantrips like Opt and Preordain become powerful card draw spells, and since Matoya doesnt have a once per turn restriction, you can draw cards throughout your turn with effects like Search for Azcanta, Retreat to Coralhelm, and Palantr of Orthanc
Lightning Bolt, on the contrary, isnt legal in Standard or Pioneer, so its Thrum of the Vestige version from FCA is also unplayable in those formats
At the other angle, you should see an eyeball symbol repeated over and over again in a pattern (knows as the Eye of Wdjat)

Heres how the deck ended up: Creatures (40) 1 Solemn Simulacrum 1 Wall of Blossoms 1 Mortivore 1 Eternal Witness 1 Yavimaya Elder 1 Carven Caryatid 1 Elvish Skysweeper 1 Yavimaya Dryad 1 Riftsweeper 1 Farhaven Elf 1 Deathgreeter 1 Elvish Visionary 1 Lord of Extinction 1 Acidic Slime 1 Pawn of Ulamog 1 Reassembling Skeleton 1 Massacre Wurm 1 Viridian Emissary 1 Hornet Queen 1 Reaper from the Abyss 1 Skirsdag High Priest 1 Disciple of Bolas 1 Jarad, Golgari Lich Lord 1 Reclamation Sage 1 Grim Haruspex 1 Ghoulcaller Gisa 1 Graveblade Marauder 1 Catacomb Sifter 1 Mazirek, Kraul Death Priest 1 Corpse Augur 1 Gonti, Lord of Luxury 1 Noxious Gearhulk 1 Hope of Ghirapur 1 Ravenous Chupacabra 1 Dusk Legion Zealot 1 Krav, the Unredeemed 1 Poison-Tip Archer 1 Izoni, Thousand-Eyed 1 Golgari Findbroker 1 Kraul Harpooner Lands (38) 9 Forest 10 Swamp 1 Phyrexian Tower 1 High Market 1 Mikokoro, Center of the Sea 1 Miren, the Moaning Well 1 Golgari Rot Farm 1 Overgrown Tomb 1 Svogthos, the Restless Tomb 1 Swarmyard 1 Twilight Mire 1 Jund Panorama 1 Oran-Rief, the Vastwood 1 Command Tower 1 Woodland Cemetery 1 Temple of Malady 1 Myriad Landscape 1 Command Beacon 1 Sea Gate Wreckage 1 Hissing Quagmire 1 Westvale Abbey Spells (22) 1 Sylvan Library 1 Sol Ring 1 Oversold Cemetery 1 Skullclamp 1 Black Market 1 Phyrexian Reclamation 1 Greater Good 1 Krosan Grip 1 Damnation 1 Eldrazi Monument 1 Nim Deathmantle 1 Bonehoard 1 Tragic Slip 1 Bow of Nylea 1 Malicious Affliction 1 Evolutionary Leap 1 Vampiric Rites 1 Blade of Selves 1 Ulvenwald Mysteries 1 Seasons Past 1 Journey to Eternity 1 Assassin's Trophy So, what do you think

Not only can it put all four "sons of Horus" in the Graveyard by Turn 1, but they can also revive themselves right away
Why pay mana if you dont have to