If another permanent becomes a copy of a leveler, all of the leveler's printed abilitiesincluding those represented by level symbolsare copied

Darth Vader, Dark Lord of the Sith Emperor Palpatine, Darth Sidious Darth Bane, the Rule of Two Darth Maul, Blade of Hate Count Dooku, Darth Tyranus Darth Plagueis the Wise Asajj Ventress, Dark Acolyte Kylo Ren, Master of the Knights of Ren The Grand Inquisitor Grand Moff Tarkin, the Doctrine of Fear Grand Admiral Thrawn, Chiss Strategist Director Orson Krennic Admiral Piett, Risen by Attrition General Veers, Blizzard Force Moff Gideon, Warden of the Darksaber Captain Phasma, Chrome Enforcer General Grievous, Collector of Sabers Dark Trooper Phase III IG-88, Assassin Droid Boba Fett, the Bounty Hunter Jango Fett, Template of the Clones Bossk, Trandoshan Tracker Cad Bane, Duros Gunslinger Jabba the Hutt, Crime Lord of Tatooine Death Trooper Detachment Snowtrooper Vanguard Scout Trooper Outrider Royal Guard of the Emperor Imperial Officer Sith Trooper Phalanx The 501st Legion Stormtrooper Garrison TIE Fighter TIE Advanced x1 Imperial Star Destroyer AT-AT Walker The Executor, Super Star Destroyer The Death Star Vader's Lightsaber Vader's Life-Support Armor The Sith Holocron Force Choke Force Lightning Unlimited Power Order 66 Fear Will Keep Them in Line I Find Your Lack of Faith Disturbing The Emperor's Tribute Carbonite Freezing Chamber Sol Ring Mana Crypt Jeweled Lotus Arcane Signet Orzhov Signet Demonic Tutor Vampiric Tutor Swords to Plowshares Anguished Unmaking Toxic Deluge Necropotence Aetherflux Reservoir Animate Dead Leonin Relic-Warder Bolas's Citadel Sensei's Divining Top Command Tower Ancient Tomb Godless Shrine Isolated Chapel Shattered Sanctum Caves of Koilos Marsh Flats Bojuka Bog Shambling Vent Castle Locthwain Phyrexian Tower Plains Swamp Sith Trooper Treasure

: Attach Cranial Plating to target creature you control
The discard is what pushes Hopeless Nightmare over the edge, and between that and its fast, aggressive damage, it makes for safe ban in respect to the health of the current meta
Here's the plan: Turn one : Tapped Land, preferably with both colors
If you don't control three or more creatures as the ability tries to resolve, it won't resolve and none of its effects will happen