Legendary Creature — Nightmare Hydra

Zaxara, the Exemplary

Mana value4EDHREC#5,550

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The Commander

Deathtouch

{T} : Add two mana of any one color.

Whenever you cast a spell with {X} in its mana cost, create a 0/0 green Hydra creature token, then put X +1/+1 counters on it.

Guide

Gameplan

Ramp aggressively with Zaxara's mana ability, then dump X spells to generate a board of large Hydra tokens while drawing cards and gaining value. You win by either casting a single huge X spell for a token plus copies/doublers, or by leveraging infinite mana combos to make an arbitrarily large board or burn the table out.

Strengths

Built-in ramp on the command zone with a two-mana-of-any-color tap ability
X spells double as removal, ramp, and token generation
Sultai colors give the best ramp, draw, and tutors in the format
Easily abuses mana doublers and untap effects for explosive turns

Weaknesses

Heavily reliant on the commander staying in play to fuel and trigger payoffs
X spells are often inefficient and mana-hungry without ramp online
Token board is vulnerable to wraths and mass bounce
Can be slow to assemble its engine against fast aggro or combo decks

Key Cards

Doubling Season — Doubles the +1/+1 counters on every Hydra token and doubles tokens from copy effects, instantly making giant threats.
Unbound Flourish — Reduces and copies your X spells, generating extra Hydra tokens and triggers off Zaxara.
Hydroid Krasis — An X spell that draws cards and gains life on cast while making a Hydra token, the ideal Zaxara payoff.
Freed from the Real — Combos with Zaxara's mana ability and any blue mana to generate infinite mana of any color.
Pemmin's Aura — Another untapper that goes infinite with Zaxara, fueling arbitrarily large X spells.
Walking Ballista — An X creature that both makes a Hydra and serves as an infinite-mana win by pinging the table.

Upgrade Path

Add fast mana and untap pieces (Sol Ring, Mana Vault, Freed from the Real, Pemmin's Aura) to enable infinite-mana combos with Walking Ballista. Layer in payoffs like Doubling Season, Unbound Flourish, and Rishkar's Expertise, plus protection like Heroic Intervention and a strong tutor package (Demonic Tutor, Mystical Tutor) to find your combo or counter-doubler consistently.

Core Cards

The most-played cards for this commander, built from aggregated deck data (the Mythic Graph). Build public decks to seed it.

Win Conditions

▸Infinite mana via Freed from the Real/Pemmin's Aura into Walking Ballista or an X-burn spell to kill the table
▸Going wide with multiple huge Hydra tokens and swinging, often with a counter doubler
▸Casting a massive X draw spell like Stroke of Genius or Pull from Tomorrow to bury opponents in card advantage
▸Voltron-style commander damage by piling counters on a single oversized Hydra

Archetypes

X Spells Matter — Every X spell cast triggers Zaxara to make a counter-laden Hydra, rewarding a deck full of variable-cost spells.
Combo — Untap auras on Zaxara plus blue mana enable infinite mana to fuel Walking Ballista, Stroke of Genius, or Comet Storm.
+1/+1 Counters — Hydra tokens enter with counters, synergizing with proliferate and counter-doubling effects for a go-wide stompy plan.
Ramp/Big Mana — Zaxara's mana ability and Sultai ramp let you cast enormous X spells ahead of the table.

Combos

Zaxara, the Exemplary + Freed from the Real
→ Infinite colored mana
Zaxara, the Exemplary + Pemmin's Aura
→ Infinite colored mana
Zaxara, the Exemplary + Umbral Mantle + Nyxbloom Ancient
→ Infinite colored mana, Infinitely large creature until end of turn, Infinite untap of creatures you control
Zaxara, the Exemplary + Umbral Mantle + Mana Reflection
→ Infinite colored mana, Infinitely large creature until end of turn, Infinite untap of creatures you control
Zaxara, the Exemplary + Umbral Mantle + Training Grounds
→ Infinite colored mana, Infinitely large creature until end of turn, Infinite untap of creatures you control