Szadek Lose Abilities

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• Make Szadek unblockable
• After Szadek connects a couple of times and gets large; make Szadek lose all abilities (preferably during combat after blocks declared), so it does real damage instead of milling
• Creatures equal to number of cards in graveyard
• Triggers on milling
 
Mana Acceleration (12): General (1): Spells (26): Sideboard (Omitted/Cut card ideas):
1 Burnished Hart 1 Szadek, Lord of Secrets 1 Argentum Armor 1 Mirko Vosk, Mind Drinker
1 Caged Sun   1 Bonehoard 1 Aetherborn Marauder
1 Charcoal Diamond Creatures (25): 1 Fireshrieker 1 Spike Cannibal
1 Commander's Sphere 1 Consuming Aberration 1 Grappling Hook 1 Sepulchral Primordial
1 Dimir Signet 1 Duskmantle Guildmage 1 Hammer of Nazahn 1 Cephalid Constable
1 Dimir Locket 1 Lazav, Dimir Mastermind 1 Hedron Matrix 1 Blade of the Bloodchief
1 Gilded Lotus 1 Sire of Stagnation 1 Helm of the Host 1 Planar Void
1 Sky Diamond 1 Wrexial, the Risen Deep 1 Profane Memento 1 Ixidron
1 Thran Dynamo 1 Drakestown Forgotten 1 Prowler's Helm 1 Thassa, God of the Sea
1 Unstable Obelisk 1 Dreadhound 1 Skyblinder Staff 1 Necropolis Regent
1 Worn Powerstone 1 Guiltfeeder 1 Sword of Vengeance 1 Deepchannel Mentor
1 Midnight Clock 1 Ink-Eyes, Servant of Oni 1 Trailblazer's Boots 1 Herald of Secret Streams
  1 Lord of the Void 1 Trepanation Blade  
Lands (36): 1 Mortivore 1 Fate Transfer  
1 Underground Sea 1 Nighthowler 1 Bloodchief Ascension  
1 Watery Grave 1 Scion of Darkness 1 Dauthi Embrace  
1 Dimir Aqueduct 1 Sewer Nemesis 1 Liliana of the Dark Realms  
1 Agadeem's Awakening // Agadeem, the Undercrypt 1 Syr Konrad, the Grim 1 Retribution of the Ancients  
1 Beyeen Veil // Beyeen Coast 1 Wight of Precinct Six 1 Sudden Spoiling  
1 Blackbloom Rogue // Blackbloom Bog 1 Archetype of Imagination 1 Dance of the Skywise  
1 Glasspool Mimic // Glasspool Shore 1 Diluvian Primordial 1 Dress Down  
1 Guildless Commons 1 Novijen Sages 1 Gift of Tusks  
1 Hagra Mauling // Hagra Broodpit 1 Sage of Fables 1 Jace, Memory Adept  
1 Malakir Rebirth // Malakir Mire 1 Sakashima of a Thousand Faces 1 Ovinize  
1 Myriad Landscape 1 Sakashima the Impostor 1 Polymorphist's Jest  
1 Sea Gate Restoration // Sea Gate, Reborn 1 Spark Double 1 Turn to Frog  
1 Thawing Glaciers 1 Sun Quan, Lord of Wu    
1 Umara Wizard // Umara Skyfalls 1 Undead Alchemist    
1 Zof Consumption // Zof Bloodbog      
10 Swamp      
10 Island      
1 Sol Ring