C Common Mage Power X SPELL Equip The equipped monster gains 500 ATK/DEF for each Spell/Trap you control
Just complete the solo battles for completing those empty slots in your promo card collection and call it a day
However, the bread and butter of the Dark World archetype naturally comes from the Primal Burst set
This indicates its loyalty while its not on the battlefield, and it also indicates that the planeswalker enters the battlefield with that many loyalty counters on it

Aerith, Last Ancient Commander Deck List Thriving in Purgatory With Aerith, Last Ancient View on Archidekt Commander (1) 1 Aerith, Last AncientAerith, Last Ancient Creatures (49) 1 Aftermath AnalystAftermath Analyst 1 Agonasaur RexAgonasaur Rex 1 Ainok WayfarerAinok Wayfarer 1 Airlift ChaplainAirlift Chaplain 1 Altanak, the Thrice-CalledAltanak, the Thrice-Called 1 Archivist of OghmaArchivist of Oghma 1 Avacyn's PilgrimAvacyn's Pilgrim 1 Beast WhispererBeast Whisperer 1 Blanchwood ProwlerBlanchwood Prowler 1 Blossoming BogbeastBlossoming Bogbeast 1 Daxos, Blessed by the SunDaxos, Blessed by the Sun 1 Disciple of Freyalise // Garden of FreyaliseDisciple of Freyalise // Garden of Freyalise 1 Eagles of the NorthEagles of the North 1 Elvish MysticElvish Mystic 1 Essence WardenEssence Warden 1 Exemplar of LightExemplar of Light 1 Fyndhorn ElvesFyndhorn Elves 1 Generous EntGenerous Ent 1 Gilded GooseGilded Goose 1 Greater TanukiGreater Tanuki 1 Guide of SoulsGuide of Souls 1 Haywire MiteHaywire Mite 1 Hurska Sweet-ToothHurska Sweet-Tooth 1 Imposing VantasaurImposing Vantasaur 1 Llanowar ElvesLlanowar Elves 1 Lunarch Veteran // Luminous PhantomLunarch Veteran // Luminous Phantom 1 Prize PigPrize Pig 1 Prosperous InnkeeperProsperous Innkeeper 1 Radiant SolarRadiant Solar 1 Resplendent AngelResplendent Angel 1 Rhox FaithmenderRhox Faithmender 1 Sakura-Tribe ElderSakura-Tribe Elder 1 Samwise GamgeeSamwise Gamgee 1 Satyr WayfinderSatyr Wayfinder 1 Shefet MonitorShefet Monitor 1 Shigeki, Jukai VisionaryShigeki, Jukai Visionary 1 Soul WardenSoul Warden 1 Soul's AttendantSoul's Attendant 1 Spinewoods ArmadilloSpinewoods Armadillo 1 Splendor MareSplendor Mare 1 Sproutback TrudgeSproutback Trudge 1 The GafferThe Gaffer 1 Titanoth RexTitanoth Rex 1 Town GreeterTown Greeter 1 Vanguard SeraphVanguard Seraph 1 Warped TuskerWarped Tusker 1 Webstrike EliteWebstrike Elite 1 Winged ShepherdWinged Shepherd 1 Witch Enchanter // Witch-Blessed MeadowWitch Enchanter // Witch-Blessed Meadow Sorceries (8) 1 Bridgeworks Battle // Tanglespan BridgeworksBridgeworks Battle // Tanglespan Bridgeworks 1 Emeria's Call // Emeria, Shattered SkyclaveEmeria's Call // Emeria, Shattered Skyclave 1 Nature's LoreNature's Lore 1 Sevinne's ReclamationSevinne's Reclamation 1 Shamanic RevelationShamanic Revelation 1 The Battle of BywaterThe Battle of Bywater 1 Three VisitsThree Visits 1 Vanquish the HordeVanquish the Horde Enchantments (5) 1 Case of the Uneaten FeastCase of the Uneaten Feast 1 Cleric ClassCleric Class 1 Dredger's InsightDredger's Insight 1 Guardian ProjectGuardian Project 1 Peace of MindPeace of Mind Artifacts (3) 1 SkullclampSkullclamp 1 The Underworld CookbookThe Underworld Cookbook 1 Witch's OvenWitch's Oven Instants (1) 1 Swords to PlowsharesSwords to Plowshares Lands (33) 1 Adventurer's InnAdventurer's Inn 1 Blighted SteppeBlighted Steppe 1 Bountiful PromenadeBountiful Promenade 1 BrushlandBrushland 1 Canopy VistaCanopy Vista 1 Command TowerCommand Tower 1 Fabled PassageFabled Passage 7 ForestForest 1 Gingerbread CabinGingerbread Cabin 1 Hashep OasisHashep Oasis 1 Horizon CanopyHorizon Canopy 1 Hushwood VergeHushwood Verge 1 Krosan VergeKrosan Verge 1 Lush PorticoLush Portico 1 Minas TirithMinas Tirith 1 Nomad StadiumNomad Stadium 1 Overgrown FarmlandOvergrown Farmland 4 PlainsPlains 1 Radiant FountainRadiant Fountain 1 Scavenger GroundsScavenger Grounds 1 Temple GardenTemple Garden 1 Temple of PlentyTemple of Plenty 1 The ShireThe Shire 1 Windswept HeathWindswept Heath Conclusion While this Aerith, Last Ancient deck doesn't include any Game Changers, I'd call it a Bracket 3 deck because of its upgraded mana base and modest collection of staples

This isnt an additional cost to activate the ability, so an opponent could exile your graveyard in response