This is a life-swing deck that wants to both gain and lose life each turn, because Betor turns both into value at every end step. Life gained becomes +1/+1 counters on another creature. Life lost sets the mana value cap for a creature reanimated from the graveyard, which makes cheap creatures with strong enter effects repeatable value every turn. Painlands, fetches, shocks and pay-life cards drive the loss half. Enter-the-battlefield lifegain creatures, lifelink and end-step lifegain drive the gain half. Self-mill fills the graveyard with targets, and big threats wait there for dedicated reanimation spells. How it wins: Repeated lifegain triggers grow the board through counter payoffs and drain opponents directly, while big fliers and pumped lifelinkers, often reanimated, finish the job in combat. Key roles: - Paying life as a resource: Painlands, fetches, shocks, life-cost draw and life-cost removal all deliberately raise the life lost each turn. Repeatable pay-life outlets let the amount be pushed on demand right before the end step. That makes Betor's reanimation bigger and keeps the card advantage flowing. (Dark Confidant, Doom Whisperer, Wall of Blood) - Lifegain triggers: Soul-Warden-style creatures, lifelink granters and repeatable gain make sure life is gained every turn, often in many small instances. Lifegain that resolves at the start of the end step can be ordered ahead of Betor's trigger to add to its counters that same turn. This feeds Betor and every "whenever you gain life" card. (Soul Warden, Wall of Reverence, Whip of Erebos) - Counter and drain payoffs: Lifegain converts into +1/+1 counters across the team, extra counters, card draw off counters, or direct life loss for opponents. Betor's targeted counters stack on top. (Archangel of Thune, Enduring Tenacity, Kami of Whispered Hopes) - Cheap recursive value creatures: Low-cost creatures with enter or death effects fit easily under Betor's life-loss cap. They can be brought back end step after end step, which turns symmetrical edict removal, mill and lifegain into repeatable engines. (Accursed Marauder, Aftermath Analyst, Haywire Mite) - Self-mill and big reanimation: Mill effects and tutors-to-graveyard stock creatures for Betor's trigger and the second gain-based recursion trigger. Large threats are meant to sit in the graveyard until dedicated reanimation spells and mass returns put them into play. Land recursion turns milled lands into steady land drops and ramp, so heavy milling never costs land drops. (Buried Alive, Reanimate, Eerie Ultimatum) - Sacrifice for value: Pumped creatures get sacrificed to draw cards equal to their power, while enter-and-sacrifice creatures and Pest tokens provide fodder that Betor can bring back later. (Greater Good, Disciple of Bolas, Beledros Witherbloom)

Hows your balance? decklist

• Windswept Heath
• Lush Portico
• Boseiju, Who Endures
• Underground Mortuary
• Sylvan Library
• Colossal Grave-Reaver
• Aftermath Analyst
• Liliana the Faultless
• Kwia Vigorbloom
• Underrealm Lich
• Restoration Magic
• Blossoming Tortoise
• Breach the Multiverse
• Gravebreaker Lamia
• Eerie Ultimatum
• Enduring Tenacity
• Selfless Spirit
• Accursed Marauder
• Elves of Deep Shadow
• Authority of the Consuls
• Whip of Erebos
• Millikin
• Kami of Whispered Hopes
• Essence Warden
• Decorum Dissertation
• Talisman of Hierarchy
• 3× Forest
• The Great Henge
• Vona, Butcher of Magan
• Sakura-Tribe Elder
• Talisman of Resilience
• Sol Ring
• Witch Enchanter // Witch-Blessed Meadow
• Snuff Out
• Bitter Triumph
• Eternal Witness
• Toxic Deluge
• Fell the Profane // Fell Mire
• Disciple of Bolas
• Vault of Champions
• Disciple of Freyalise // Garden of Freyalise
• Malakir Rebirth // Malakir Mire
• Haywire Mite
• Moseo, Vein's New Dean
• Exotic Orchard
• Valgavoth, Terror Eater
• Ripples of Undeath
• Wall of Reverence
• Greater Good
• Dark Confidant
• Birds of Paradise
• Wall of Blood
• Beledros Witherbloom
• Soul Warden
• Nykthos Paragon
• Doom Whisperer
• Archangel of Thune
• 3× Plains
• Stargaze
• Liliana the Repentant
• Prosperous Innkeeper
• Gala Greeters
• Life from the Loam
• Reanimate
• Command Tower
• Black Market Connections
• Terrasymbiosis
• Buried Alive
• Bleachbone Verge
• Marsh Flats
• Prismatic Vista
• Godless Shrine
• 4× Swamp
• Caves of Koilos
• Bloodstained Mire
• Bountiful Promenade
• Overgrown Tomb
• Llanowar Wastes
• Silent Clearing
• Wastewood Verge
• Mana Confluence
• City of Brass
• Shadowy Backstreet
• Brushland
• Anguished Unmaking
• Reliquary Tower
• Withering Curse
• Painful Truths
• Cleric Class
• Blossoming Bogbeast
• Lathiel, the Bounteous Dawn
• Priest of Fell Rites