The deck is a -1/-1 counter engine built around Auntie Ool, Cursewretch. Every time counters land on a creature, Ool draws a card if the player controls that creature, or drains its controller for 1 if they don't. Wither creatures, direct counter placement, blight costs and repeated proliferate turn each counter event into cards or life loss. A large suite of temporary -1/-1 sweepers, static shrink effects and death-trigger shrinks grinds opposing boards down so that only the counter-users' threats remain. How it wins: It wears opponents down with Ool's repeated life-loss triggers and drain effects while the shrunken enemy boards leave room for wither, persist and infect creatures to attack, with poison plus proliferate as a second route to the kill. Key roles: - Counter placement on opponents: Wither creatures, targeted counters and mass counter effects put -1/-1 counters on enemy creatures, making each controller lose life through Auntie Ool, Cursewretch while killing their creatures (Soul Snuffers, Contagion Engine, Kulrath Knight) - Self-blight card engine: Blight costs, creatures that enter with counters, and persist creatures put counters on the deck's own creatures, turning Auntie Ool, Cursewretch into a steady draw engine and paying off token and mana makers (Sinister Gnarlbark, Scuzzback Scrounger, Nest of Scarabs) - Proliferate multiplier: Each proliferate puts another counter on every marked creature, triggering Auntie Ool, Cursewretch once per creature, and also advances poison counters and planeswalker loyalty (Karn's Bastion, Contagion Clasp, Vraska, Betrayal's Sting) - Shrink sweepers and static debuffs: Mass -1/-1 spells and anthem-style shrink effects wipe out tokens and small creatures and leave survivors weakened for wither combat (Massacre Girl, Night of Souls' Betrayal, Marsh Casualties) - Death-trigger value: Creatures dying with counters on them draw cards, steal the dead creature, or make Treasure, so every board wipe refills resources (The Scorpion God, Necroskitter, The Reaper, King No More) - Infect and poison backup: Infect and toxic creatures, poison-adding effects, and token generation tied to poison offer an alternate win that proliferate pushes forward (Skithiryx, the Blight Dragon, Phyrexian Swarmlord, Contaminant Grafter)

Auntie Ool, Cursewretch decklist

• Blightbelly Rat
• Bloodghast
• Bogbrew Witch
• Cankerbloom
• Contagion Clasp
• Contagion Engine
• Contagious Vorrac
• Contaminant Grafter
• Copper Longlegs
• Core Prowler
• Drown in Ichor
• Everlasting Torment
• Fang Skulkin
• Festering March
• Festering Newt
• Flailing Manticore
• Fume Spitter
• Furystoke Giant
• Glistener Elf
• Gnashing of Teeth
• Gnawing Vermin
• Golgari Charm
• Grasping Dunes
• Grave Venerations
• Grim Affliction
• Grim Poppet
• Gristle Glutton
• Gruesome Realization
• Gutsplitter Gang
• Hand of the Praetors
• Hapatra's Mark
• Hapatra, Vizier of Poisons
• Hapatra, the Desert Fang
• Heartless Summoning
• Hezrou
• High Perfect Morcant
• Ichorclaw Myr
• Illness in the Ranks
• Incremental Blight
• Jolrael's Centaur
• Juvenile Gloomwidow
• Karn's Bastion
• Korozda Gorgon
• Kulrath Knight
• Kuro, Pitlord
• Leeching Bite
• Let's Play a Game
• Lichenthrope
• Liliana's Influence
• Lingering Tormentor
• Lockjaw Snapper
• Lose Hope
• M.O.D.O.K.
• Marsh Casualties
• Massacre Girl
• Massacre Girl, Known Killer
• Mephitic Vapors
• Midnight Banshee
• Mikaeus, the Unhallowed
• Morselhoarder
• Nausea
• Necropede
• Needle Specter
• Nefashu
• Nest of Scarabs
• Nesting Grounds
• Nether Traitor
• Neutralize the Guards
• Night of Souls' Betrayal
• Noxious Hatchling
• Oft-Nabbed Goat
• Orc Sureshot
• Ornery Kudu
• Persist
• Phyresis
• Phyrexian Crusader
• Phyrexian Hydra
• Phyrexian Juggernaut
• Phyrexian Swarmlord
• Plague Dogs
• Plague Mare
• Plague Myr
• Plague Stinger
• Plaguemaw Beast
• Poison the Waters
• Puncture Blast
• Puppeteer Clique
• Putrefax
• Putrid Goblin
• Rattleblaze Scarecrow
• Reaper of Sheoldred
• Rendclaw Trow
• Requiting Hex
• Retribution
• Rolling Spoil
• Ruthless Sniper
• Scar
• Scuttling Death
• Scuzzback Marauders
• Scuzzback Scrapper
• Scuzzback Scrounger
• Searing Spear Askari
• Seeker's Folly
• Septic Rats
• Serrated Biskelion
• Shadow Urchin
• Shambling Goblin
• Shambling Swarm
• Shed Weakness
• Sickle Ripper
• Sinister Gnarlbark
• Six-Sided Die
• Skirk Ridge Exhumer
• Skithiryx, the Blight Dragon
• Soul Snuffers
• Soul-Scar Mage
• Sourbread Auntie
• Spinebiter
• Spinerock Tyrant
• Splatter Goblin
• Splendid Agony
• Stabbing Pain
• Stigma Lasher
• Stinging Shot
• Subtle Strike
• Suffocating Fumes
• Tangle Angler
• Tel-Jilad Fallen
• Tenacious Hunter
• The Reaper, King No More
• The Scorpion God
• Thirsting Roots
• Thunderblust
• Tooth Collector
• Torment of Venom
• Torture
• Tourach's Chant
• Tower Above
• Toxic Nim
• Toxic Stench
• Tragic Banshee
• Tragic Slip
• Traveling Plague
• Twinblade Slasher
• Umezawa's Charm
• Unnatural Restoration
• Vampirism
• Vector Asp
• Venerated Rotpriest
• Village Pillagers
• Viridian Betrayers
• Viridian Corrupter
• Virulent Wound
• Volt Charge
• Wail of War
• Warren Torchmaster
• Whisper of the Dross
• Whispering Specter
• Wicker Warcrawler
• Wickerbough Elder
• Wickersmith's Tools
• Wildslayer Elves
• Witherscale Wurm
• Woodfall Primus
• Woodlurker Mimic
• Bloated Contaminator
• Evolution Sage
• Grumgully, the Generous
• Liliana, Death Wielder
• Necroskitter
• Obelisk Spider
• Vraska, Betrayal's Sting