Shirei, Shizo's Caretaker

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Things that work well with Shirei. Note in a Shirei build you do not want adders (Caged Sun, Gauntlet of Power, Skullclamp), as it's a bombo with Shirei.
Power 0, 1, X artifact or black creatures
Sac creature/permanent effects
Shroud / Indestructible / Regen (for Shirei)
 
Mana Acceleration (7): General (1): Spells / Creatures with power 2+ (26): Sideboard (Omitted/Cut card ideas):
1 Burnished Hart 1 Shirei, Shizo's Caretaker 1 Ashnod's Altar 1 Tetravus
1 Extraplanar Lens   1 Blasting Station 1 Thopter Squadron
1 Unstable Obelisk Creatures with power 0-1 (31): 1 Carnage Altar 1 Undercity Informer
1 Crypt Ghast 1 Bottle Gnomes 1 Darksteel Plate 1 Fell Shepherd
1 Liliana of the Dark Realms 1 Mindless Automaton 1 Jar of Eyeballs 1 Eater of Hope
1 Magus of the Coffers 1 Pentavus 1 Lightning Coils 1 Flesh Carver
1 Nirkana Revenant 1 Pilgrim's Eye 1 Phyrexian Altar 1 Junk Diver
  1 Scarecrone 1 Shield of Kaldra 1 Myr Retriever
Lands (35): 1 Triskelavus 1 Spawning Pit 1 Disciple of the Vault
1 Thawing Glaciers 1 Triskelion 1 Summoning Station 1 Gnawing Zombie
1 Cabal Coffers 1 Workhorse 1 That Which Was Taken 1 Minion Reflector
1 Crypt of Agadeem 1 Abyssal Gatekeeper 1 Attrition 1 Gutless Ghoul
1 High Market 1 Apprentice Necromancer 1 Black Market 1 Extractor Demon
1 Miren, the Moaning Well 1 Big Game Hunter 1 Butcher of Malakir 1 Blade of the Bloodchief
1 Thespian's Stage 1 Bile Urchin 1 Champion of Stray Souls 1 Skirsdag High Priest
1 Vesuva 1 Blood Artist 1 Dictate of Erebos 1 Hecatomb
27 Swamp 1 Bone Shredder 1 Gate to Phyrexia 1 Blessing of Leeches
1 Sol Ring 1 Cadaver Imp 1 Grave Pact 1 Soul Channeling
  1 Death Cultist 1 Grim Haruspex 1 Strands of Undeath
  1 Deathgreeter 1 Harvester of Souls 1 Horror of Horrors
  1 Disciple of Griselbrand 1 Infernal Tribute 1 Sanguine Praetor
  1 Dutiful Attendant 1 Ogre Slumlord 1 Festering Newt
  1 Fume Spitter 1 Pawn of Ulamog 1 Reprocess
  1 Grim Guardian 1 Phyrexian Plaguelord 1 Magus of the Abyss
  1 Hell's Caretaker 1 Reaper from the Abyss 1 Life Matrix
  1 Infectious Host 1 Shadows of the Past 1 Thoughtpicker Witch
  1 Liliana's Shade   1 The Abyss
  1 Marsh Flitter   1 Copper Gnomes
  1 Plagued Rusalka   1 Heap Doll
  1 Soldevi Adnate   1 Stuffy Doll
  1 Viscera Seer   1 Blood Pet
  1 Qarsi High Priest   1 Coffin Queen
  1 Qarsi Sadist   1 Crypt Rats
  1 Sultai Emissary   1 Infected Vermin