Legendary Creature — Human Warrior

Tidus, Yuna's Guardian

Mana value3EDHREC#4,129

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The Commander

At the beginning of combat on your turn, you may move a counter from target creature you control onto a second target creature you control.

Cheer — Whenever one or more creatures you control with counters on them deal combat damage to a player, you may draw a card and proliferate. Do this only once each turn.

Guide

Gameplan

Tidus is a Bant counters-matter commander that snowballs +1/+1 counters across your team, then turns combat damage into card advantage and proliferate triggers. Early turns build a counter engine; from the combat step you shuffle counters onto your best attacker, connect, draw a card, and proliferate everything—growing your board while refilling your hand each turn. You close by either going wide with proliferated tokens or tall with a single oversized, evasive threat.

Strengths

Built-in repeatable card draw plus proliferate every turn keeps your engine fueled.
Proliferate scales with any counter type—loyalty, charge, +1/+1, even poison.
Cheap three-mana commander that comes down early and starts working immediately.
Bant colors give the best counter-synergy support, ramp, and protection in the format.

Weaknesses

Cheer only triggers once per turn, capping its raw card-advantage ceiling.
Relies on connecting in combat, so it folds to mass evasion-denial and fogs.
Counter-removal and board wipes can erase your whole investment at once.
Wants a critical mass of counters online before it does anything, making slow starts punishing.

Key Cards

Hardened Scales — Multiplies every counter you place, supercharging both your growth and proliferate value.
Doubling Season — Doubles counters and tokens, instantly snowballing your board into a lethal state.
Inexorable Tide — Adds a second proliferate trigger every time you cast a spell, stacking with Cheer.
Evolution Sage — Turns every land drop into a proliferate, accelerating your whole counter engine for free.
Rishkar, Peema Renegade — Distributes counters and turns your team into mana, fueling more spells and proliferate triggers.
Branching Evolution — Cheap counter doubler that makes Tidus's proliferate exponentially more impactful.
Cathars' Crusade — Snowballs counters across the entire team every time a creature enters, perfect for go-wide builds.

Upgrade Path

Add counter doublers (Hardened Scales, Branching Evolution, Doubling Season) and free proliferate sources (Evolution Sage, Inexorable Tide, Karn's Bastion) to make every combat exponential. Protect your investment with Heroic Intervention, Teferi's Protection, and Lightning Greaves, and add evasion like Rogue's Passage or Shadowspear to guarantee Cheer triggers. Tighten the curve with Bant ramp (Birds of Paradise, Farseek) so the engine comes online a turn earlier.

Core Cards

From 2 Mythicwyrm decks.

Win Conditions

▸Beat down with a proliferated, oversized evasive attacker for commander damage.
▸Go wide and alpha strike with a board pumped by anthems and proliferate.
▸Assemble a counter-doubler plus proliferate loop to outsize and outdraw every opponent.
▸Splash an infect or poison-counter angle and proliferate opponents to ten poison.

Archetypes

+1/+1 Counters — Tidus rewards loading your team with counters and proliferating them every combat for relentless growth.
Counters Voltron — Move and proliferate counters onto one evasive threat to draw cards and one-shot opponents.
Tokens / Go-Wide — Proliferate plus anthem effects like Cathars' Crusade turns a wide board into an overwhelming army.
Superfriends — Bant proliferate also ticks up planeswalker loyalty, supporting a counters-and-walkers shell.