Legendary Creature — Zombie Assassin

Thraximundar

Mana value7EDHREC#8,345

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The Commander

Haste

Whenever Thraximundar attacks, defending player sacrifices a creature of their choice.

Whenever a player sacrifices a creature, you may put a +1/+1 counter on Thraximundar.

Guide

Gameplan

Thraximundar is a Grixis voltron-aristocrats hybrid that grows huge while forcing opponents to sacrifice their best blockers. Ramp into the 6/6 haste body, swing to make a player sac a creature, then snowball counters off every sacrifice across the table. Backed by sacrifice synergies, reanimation, and removal, you grind the board down and convert his size into lethal commander damage.

Strengths

Comes down with haste and immediately pressures life totals and boards
Built-in evasion-of-sorts: defenders must sacrifice a creature before blocking math
Snowballs +1/+1 counters off any sacrifice, including your own aristocrats effects
Grixis colors give access to the best removal, ramp, and reanimation

Weaknesses

Seven mana and a creature-based plan make him vulnerable to wipes and spot removal
Commander tax makes repeated recasts punishing
No evasion natively — a single big blocker or fog can stall the attack
Sacrifice trigger lets opponents ditch tokens or worst creatures, blunting tempo

Key Cards

Grave Pact — Turns your sacrifices and combat deaths into board-wide edicts while feeding Thraximundar counters.
Dictate of Erebos — Redundant Grave Pact effect that grinds opponents out and stacks the sacrifice trigger.
Rogue's Passage — Guarantees Thraximundar connects for lethal commander damage when he's grown out of control.
Fleshbag Marauder — Repeatable edict creatures pair perfectly with his sacrifice-payoff and reanimation suite.
Reanimate — Cheats Thraximundar or other fatties back fast, dodging the seven-mana cost.
Ashnod's Altar — Free sacrifice outlet that piles counters on Thrax and fuels explosive turns.

Upgrade Path

Add fast mana (Sol Ring, Mana Crypt, signets) and reanimation (Animate Dead, Victimize) to deploy him ahead of curve and rebuild after wipes. Lean into free sacrifice outlets and Grave Pact effects for inevitability, plus protection like Lightning Greaves and Swiftfoot Boots so he survives to swing. Top-end tutors (Demonic Tutor, Vampiric Tutor) and a couple of compact aristocrats combos push it toward high power.

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

▸Commander damage from a swollen Thraximundar, often through Rogue's Passage
▸Edict effects like Grave Pact stripping opponents' boards into a beatdown
▸Aristocrats drain via Blood Artist/Zulaport Cutthroat as sacrifices pile up

Archetypes

Aristocrats — His sacrifice payoff triggers on any creature sacrificed, rewarding altars and edict effects.
Voltron — Haste plus self-growing counters lets him close games quickly with commander damage.
Reanimator — Grixis reanimation cheats out his expensive body and other large threats early.
Control — Grixis removal and edicts strip boards while Thrax provides an inevitable clock.

Combos

Thraximundar + Animation Module + Ashnod's Altar
→ Infinite +1/+1 counters on a creature, Infinite colorless mana, Infinite death triggers
Thraximundar + Animation Module + Phyrexian Altar
→ Infinite +1/+1 counters on a creature, Infinite death triggers, Infinite ETB
Thraximundar + Animation Module + Krark-Clan Ironworks
→ Infinite +1/+1 counters on a creature, Infinite colorless mana, Infinite death triggers

Combos via Commander Spellbook.