Zaxara turns every X spell into two threats: the spell itself plus a Hydra token carrying X +1/+1 counters, so the deck is stuffed with X-cost hydras, X spells and X-cost removal and finishers. Ramp, mana doublers and Zaxara's own two-mana tap pump X as high as possible. Counter-doubling enchantments and creatures then inflate both the hydras and the Zaxara tokens, and token doubling and X doubling multiply the payoff of each cast. How it wins: It overwhelms the table with oversized hydras and Hydra tokens made evasive with trample or unblockability, or finishes with a huge X spell such as Exsanguinate, Walking Ballista or Villainous Wealth, with Simic Ascendancy as an alternate counter-fueled win. Key roles: - X spell engine: Creature and noncreature spells with X in their cost each give Zaxara a Hydra token while also doing their own job, so every cast adds two bodies or a body plus an effect (Genesis Hydra, Hydroid Krasis, Goldvein Hydra). - Mana for big X: Land ramp, mana rocks, land auras and power-scaled mana creatures, plus a palette that stores mana only for X costs, let X climb well past normal mana (Elementalist's Palette, Selvala, Heart of the Wilds, Kami of Whispered Hopes). - Counter and token multipliers: Effects that add extra or double +1/+1 counters, double tokens, or double X itself make every Zaxara trigger and every hydra far larger, and copy X instants and sorceries (Unbound Flourishing, Adrix and Nev, Twincasters, Corpsejack Menace). - Power-based card flow: Big creatures and counter-bearing creatures fuel draw effects that scale with power or count creatures with counters, keeping the hand full of X spells (Rishkar's Expertise, Garruk's Uprising, Inspiring Call). - Evasion and pushing damage: Trample, unblockability for creatures with counters and blocking restrictions turn the hydra board into lethal combat damage (Herald of Secret Streams, Champion of Lambholt, Return of the Wildspeaker). - Alternate finishers: Scalable drain, damage and spell theft, plus a growth-counter win enchantment, close games without combat (Exsanguinate, Walking Ballista, Simic Ascendancy).

Zaxara, the Exemplary decklist

• Adrix and Nev, Twincasters
• An Offer You Can't Refuse
• Arcane Signet
• Assassin's Trophy
• Beast Within
• Benevolent Hydra
• Blue Sun's Zenith
• Branching Evolution
• Champion of Lambholt
• Command Tower
• Corpsejack Menace
• Counterspell
• Cultivate
• Curse of the Swine
• Deathcap Glade
• Dreamroot Cascade
• Drowned Catacomb
• Elementalist's Palette
• Elvish Mystic
• Erebos's Intervention
• Exotic Orchard
• Exsanguinate
• Fabled Passage
• Farseek
• Rishkar's Expertise
• Flooded Grove
• Foreboding Landscape
• 10× Forest
• Freed from the Real
• Gargos, Vicious Watcher
• Garruk's Uprising
• Genesis Hydra
• Goldvein Hydra
• Hardened Scales
• Herald of Secret Streams
• Hinterland Harbor
• Hungering Hydra
• Hydroid Krasis
• Inspiring Call
• 6× Island
• Heroic Intervention
• Kami of Whispered Hopes
• Kodama's Reach
• Lifeblood Hydra
• Lightning Greaves
• Mistcutter Hydra
• Morlun, Devourer of Spiders
• Nature's Lore
• Opulent Palace
• Pemmin's Aura
• Pest Infestation
• Primordial Hydra
• Rampant Growth
• Repulsive Mutation
• Return of the Wildspeaker
• Sakura-Tribe Elder
• Selvala, Heart of the Wilds
• Shipwreck Marsh
• Simic Ascendancy
• Sol Ring
• Springleaf Parade
• Stonecoil Serpent
• Sunken Hollow
• Sunken Ruins
• 5× Swamp
• Swiftfoot Boots
• Tangled Islet
• The Goose Mother
• Toxic Deluge
• Twilight Mire
• Tyrant Guard
• Tyvar's Stand
• Unbound Flourishing
• Up the Beanstalk
• Utopia Sprawl
• Villainous Wealth
• Voracious Hydra
• Walking Ballista
• Whiptongue Hydra
• Wild Growth
• Woodland Cemetery