The deck is a five-color +1/+1 counter swarm built around the Turtles. It makes tokens, especially Mutagen artifacts, to trigger Leonardo's once-per-turn army-wide counter, while Michelangelo's Raid adds a counter and a Food every turn it attacks. Counter amplifiers and doublers turn each small counter source into big growth, and the counters themselves pay out cards, damage and evasion. Leonardo's five-mana activation then gives the whole team menace, trample and lifelink for a decisive swing. How it wins: It builds a wide board of oversized, countered creatures and attacks with team-wide evasion, damage doubling and lifelink, with direct damage from counter placement as extra reach. Key roles: - Token and Mutagen generation: Steady streams of tokens trigger Leonardo once each turn and supply Mutagens to spend as targeted counters. Death triggers refill the supply when creatures leave. (Donatello, the Brains, Mutagen Man, Living Ooze, Endless Foot Assault) - Counter amplification: Replacement effects add extra or doubled counters to every placement. Each Leonardo trigger, Raid and Mutagen activation becomes a large boost, and counter-doubling attack triggers make single threats huge. (Corpsejack Menace, High Score, Michelangelo, Weirdness to 11) - Counter placement engines: Recurring sources keep counters landing every turn, in combat and out of it, so the amplifiers always have something to multiply. (Agent Bishop, Man in Black, Rocksteady, Mutant Marauder, Arcade Cabinet) - Counter and combat payoffs: Creatures with counters draw cards when they connect, placing counters pings opponents, and countered attackers deal doubled damage. Turtle hits also snowball more counters and cards. (Casey Jones, Back Alley Brute, Raphael, the Muscle, Ray Fillet, Wave Warrior) - Evasion and finishers: Flying, menace and trample grants, along with Shredder's life-halving copies, push the big board through blockers. One-sided bounce clears creatures without counters. (Heroes in a Half Shell, Baxter, Fly in the Ointment, Wave Goodbye) - Artifact and Food fuel: Food, Clues, Treasure and Mutagens double as mana, card draw and sacrifice fodder. They power activations like copying creatures and drawing off sacrificed artifacts, and they pump artifact-scaling equipment. (Ninja Pizza, Tempestra, Dame of Games, Technodrome)

Leonardo, the Balance & Michelangelo, the Heart decklist

• Shellshock
• Sol Ring
• April O'Neil, Live on the Scene
• Arcane Signet
• Assassin's Trophy
• Bebop, Skull & Crossbones
• Continue?
• Everything Pizza
• Foot Chopper
• Improvised Arsenal
• Level Up
• Lita, Little Orphan Amphibian
• Michelangelo, Weirdness to 11
• Mikey & Leo, Chaos & Order
• Mutagen Man, Living Ooze
• Roadkill Rodney
• Splinter, the Mentor
• Steelbane Hydra
• Super Combo
• Super Shredder
• Technodrome
• Tempestra, Dame of Games
• The Ooze
• Together Forever
• Voracious Hydra
• Agent Bishop, Man in Black
• Arcade Cabinet
• Chromatic Lantern
• Cultivate
• Donatello, the Brains
• Endless Foot Assault
• Exploding Barrel
• Here Comes a New Hero!
• High Score
• Irma, Part-Time Mutant
• Mona Lisa, Science Geek
• Ninja Pizza
• Ray Fillet, Wave Warrior
• Rocksteady, Mutant Marauder
• Special Move
• Swift Demise
• Tokka & Rahzar, Unsupervised
• Baxter, Fly in the Ointment
• Big Mother Mouser
• Casey Jones, Back Alley Brute
• Coin of Mastery
• Corpsejack Menace
• Double Jump
• Harmonize
• Lessons from Life
• Rat King, Pale Piper
• Splinter's Technique
• Wave Goodbye
• Fast Forward
• Heroes in a Half Shell
• Raphael, the Muscle
• Shredder, Shadow Master
• Venus, Torn Between Worlds
• Vigor
• Ash Barrens
• Big Apple, 3 a.m.
• Cinder Glade
• City of Brass
• Command Tower
• Dragonskull Summit
• Escape Tunnel
• Evolving Wilds
• Exotic Orchard
• Fabled Passage
• 4× Forest
• Grand Coliseum
• Hidden Hideout
• Hinterland Harbor
• 2× Island
• 2× Mountain
• Path of Ancestry
• 2× Plains
• Rain-Slicked Copse
• Rootbound Crag
• Smoldering Marsh
• Sodden Verdure
• Spire Garden
• Sunken Hollow
• 2× Swamp
• Thriving Grove
• Thriving Isle
• Thriving Moor
• Turtle Lair
• Undergrowth Stadium
• Vernal Fen
• Vibrant Cityscape