Shirei, Shizo's Caretaker continuously recurs small creatures with power 1 or less, exploiting their deaths and re-entries to drain opponents through life loss triggers, hand disruption, and passive damage from multiple enchantments and permanents that punish creatures dying or entering. Sacrifice outlets like altars and sorcery-speed engines generate mana and card draw while the recurring creatures fuel a relentless loop of drain effects. The primary win condition is an infinite turns lock using Coretapper and Magistrate's Scepter alongside Shirei, repeatedly sacrificing and recurring Coretapper to stack charge counters and take endless turns.

Shirei, Shizo's caretaker decklist

• 27× Swamp
• Arcane Signet
• Ayara, First of Locthwain
• Castle Locthwain
• Witch's Cottage
• Barren Moor
• Bojuka Bog
• Black Market
• Blood Artist
• Cadaver Imp
• Carrion Feeder
• Dark Ritual
• Doomed Dissenter
• Dusk Legion Zealot
• Exsanguinate
• Go for the Throat
• Gray Merchant of Asphodel
• Mind Stone
• Night's Whisper
• Read the Bones
• Sol Ring
• Tragic Slip
• Village Rites
• Yarok's Fenlurker
• Butcher of Malakir
• Commander's Sphere
• Sign in Blood
• Geier Reach Sanitarium
• Memorial to Folly
• Reanimate
• Mutilate
• Basal Thrull
• Viscera Seer
• Victimize
• Priest of Forgotten Gods
• Zulaport Cutthroat
• Burglar Rat
• Falkenrath Noble
• Vampiric Rites
• Deathgreeter
• Coretapper
• Magistrate's Scepter
• Blood Pet
• Bone Shredder
• Spark Harvest
• Defile
• Bontu's Monument
• Charcoal Diamond
• Lampad of Death's Vigil
• Wound Reflection
• Bastion of Remembrance
• Serrated Scorpion
• Soldevi Adnate
• Oversold Cemetery
• Open the Graves
• Bloodchief Ascension
• Polluted Bonds
• Elderfang Disciple
• Bone Shards
• Skullport Merchant
• Deadly Dispute
• Morbid Opportunist
• Eaten Alive
• Agent of the Iron Throne
• Armor of Shadows
• Infernal Idol
• Nezumi Informant
• Greedy Freebooter
• Marionette Apprentice
• Infestation Sage
• Fang, Fearless l'Cie
• Multiply by Zero
• Phyrexian Arena