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Gnostro, Voice of the Crags

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Gnostro, Voice of the Crags

At a glance

  • Commander: Gnostro, Voice of the Crags
  • Colors: Jeskai
  • Archetype: Jeskai spellslinger pinger-control
  • Power tier: mid-high

Cards

Commander

Gnostro, Voice of the Crags — Legendary Creature — Chimera

: Choose one. X is the number of spells you’ve cast this turn.

  • Scry X.
  • Gnostro deals X damage to target creature.
  • You gain X life.

The printed text matches the assignment scout’s paraphrase: Gnostro is a repeatable, modal tap engine where X scales with how many spells you’ve already cast this turn. Because this is a low-curve spellslinger shell, casting 2-4 cheap instants/sorceries per turn turns Gnostro into a flexible removal cannon (deal X to a creature), a life-buffer engine (gain X), or a card-selection engine (scry X) — every single turn, for free, at instant speed (it just needs to be untapped). commander_oracle_ok = true.

Gameplan

A grindy Jeskai control deck that wins by inevitability, not by drawing into a single wrath. The plan:

  1. Land + a mana rock early, hit the colors, and start chaining cheap cantrips (Opt, Consider, Preordain, Ponder) and reactive interaction.
  2. Resolve Gnostro. From then on, every turn you cast a couple of spells first, then tap him to ping a problematic creature, gain a stack of life to ice the aggro race, or scry to set up your next answers.
  3. The spellslinger payoffs convert the same cheap spells into a board and a clock: Murmuring Mystic spits out a flying Bird every time you cast an instant/sorcery, Guttersnipe and Thermo-Alchemist turn each cast into reach damage to all opponents, and Aven Wind Mage / Kiln Fiend / Jeskai Elder push prowess-style damage.
  4. You grind every opponent out of resources with cantrip card-advantage while your life total floats out of burn/aggro range, then close with the Bird armada + repeatable pings.

Key synergy lines

  • Cast-count stacking: Cantrips that replace themselves (Opt, Consider, Preordain, Ponder, Defiant Strike) cost you nothing net but pump Gnostro’s X and trigger every spellslinger payoff. Casting three one-mana cantrips before tapping Gnostro = a 3-damage ping or +3 life, plus three Bird tokens off Murmuring Mystic, plus 6 damage from Guttersnipe.
  • Thermo-Alchemist loop: Thermo untaps whenever you cast an instant/sorcery, so a turn with several cheap spells lets it ping multiple times — pure inevitability against a stalled board.
  • Gnostro as removal sink: You rarely need to spend a burn spell on a midrange creature; cast a cantrip or two and let Gnostro’s ping mode handle it for free, saving the burn for face damage or bigger threats.
  • Lifegain wall: Gnostro’s gain-X mode plus Pristine Talisman, Radiant Fountain, Tranquil Cove, Swiftwater Cliffs, Sacred Cat (lifelink) keeps you out of burn range while you set up.

Role breakdown (with counts)

  • Lands — 37. Three-color manabase leans on guildgates, dual taplands, the true Jeskai tri-land Perilous Landscape, the campus cycle, Command Tower / Path of Ancestry, fetch-fixers (Evolving Wilds, Ash Barrens), and 14 basics.
  • Ramp / mana rocks — 10. Sol Ring, Arcane Signet, Azorius/Boros/Izzet Signets, Jeskai Banner, Commander’s Sphere, Mind Stone, Prophetic Prism, Pristine Talisman. 9 of these also fix colors, which is the whole point at three colors.
  • Card advantage / selection — 13. Opt, Consider, Preordain, Ponder, Strategic Planning, Defiant Strike, Augur of Bolas, Winged Words, Pursue the Past, Divination, Pearl of Wisdom, Field Research, Secrets of the Golden City.
  • Spot removal / interaction — 27. Burn (Lightning Bolt, Burst Lightning, Galvanic Blast, Shock, Magma Spray, Fire Prophecy, Incinerate, Abrade, Jaya’s Greeting, Izzet Charm, Unholy Heat, Skred, Firebolt, Pillar of Flame, Sunlance); white exile-removal (Journey to Nowhere, Last Breath, Makeshift Binding, Citizen’s Arrest, Crib Swap, Pillar of Light); counters (Counterspell, Spell Pierce, Dispel, Essence Scatter, Negate, Arcane Denial). Plus Gnostro’s own free ping every turn.
  • Mass / pseudo-wipe — 3. Cosmotronic Wave (1 to each opp creature + they can’t block), Barrage of Boulders, Hurly-Burly — sweep tokens/x/1 boards; red gives us the wipe slot.
  • Payoffs / wincon — 9. Murmuring Mystic, Guttersnipe, Thermo-Alchemist, Aven Wind Mage, Kiln Fiend, Jeskai Elder, Niblis of the Mist, Sacred Cat, Pondering Mage.

(Counts overlap by design — many cantrips are both “draw” and “enabler,” and several burn spells double as removal and reach. The schema numbers below count each card in its primary role to total 99.)

Manabase / fixing note

~19 fixing sources (Perilous Landscape tri-land, 3 guildgates, the WUR dual-tapland cycle, Command Tower, Path of Ancestry, Crystal Grotto, Prophetic Prism, and 9 color-fixing rocks) make all three colors reliably castable; double-pipped cards are kept light (Counterspell is the only ) to respect the common-fixing ceiling.

Pilot notes

  • Mulligan for 2+ lands and a rock or a cantrip. You want to be casting spells by turn 2-3.
  • Sequence cheap spells before tapping Gnostro each turn to maximize X.
  • Don’t over-commit creatures into open mana; this deck wins on attrition, so hold counters for the threats that actually beat you.
  • Gnostro’s ping is sorcery-speed-irrelevant — leave him untapped on opponents’ turns so you can react, then ping at the end of your spell sequence.
  • Murmuring Mystic resolving is often game-defining: protect it.

Weaknesses

  • Enchantment/artifact removal is thin at common in these colors — Makeshift Binding/Citizen’s Arrest can’t be recurred, and resolved problem permanents (big enchantments) are hard to answer.
  • No true board wipe — the three “wipes” only clear small creatures; a wide go-wide deck with 3+ toughness bodies races us.
  • Commander-dependent tempo: if Gnostro keeps getting killed, the free ping/lifegain inevitability stalls and the deck leans entirely on the fragile payoff creatures.

Decklist

⬇ Download as .txt — paste into Moxfield, Archidekt, or MTG Arena.

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