Is Filth good in Commander?

Filth in Commander — Combos, Decks & Price

Filth turns every creature you control into an evasion threat the moment it hits a graveyard — swampwalk on the whole team for a one-time two-mana investment. In the decks that want it, particularly Magar of the Magic Strings builds that recur it repeatedly, it converts a board stall into a one-turn clock.

Best Commanders

Commanders with the highest synergy

01

Magar of the Magic Strings

42.5% of decks · synergy 0.41

Magar of the Magic Strings copies instants and sorceries as creature tokens and swings with them, and Filth in the graveyard means every one of those tokens walks straight past blockers — 42% of Magar decks run it for exactly that reason.

02

Phage the Untouchable

43.1% of decks · synergy 0.41

Phage the Untouchable kills on contact but gets stonewalled by any ground creature; Filth in the graveyard removes that problem entirely, letting Phage connect through chump blockers that would otherwise stall the win indefinitely.

03

Xu-Ifit, Osteoharmonist

15.0% of decks · synergy 0.13

Xu-Ifit, Osteoharmonist cares about creatures dying and returning from the graveyard, so Filth fits naturally into a bin-centric gameplan that already wants black permanents cycling through the yard.

04

Coram, the Undertaker

13.0% of decks · synergy 0.12

Coram, the Undertaker wants to attack and deal damage to trigger its card-exile ability, and Filth in the graveyard clears the path so Coram and its supporting creatures connect without trading into blockers.

05

Ashcoat of the Shadow Swarm

11.7% of decks · synergy 0.09

Ashcoat of the Shadow Swarm goes wide with a Mouse tribal swarm, and Filth upgrades that wide board from easily chump-blocked to largely unblockable — 12% inclusion reflects how cleanly it fits the attack-with-many-small-creatures plan.

Format Analysis

Where it lives, where it can’t

Format	Verdict
commander	legal
legacy	legal
modern	not legal
pioneer	not legal
standard	not legal
vintage	legal
pauper	not legal
oathbreaker	legal

Commander is where Filth actually lives — graveyard recursion is abundant, Swamps are everywhere in black decks, and the payoff of blanket swampwalk scales hard with wide boards and reanimator strategies. Legacy and Vintage are legal formats but Filth sees essentially zero competitive play there; those formats move too fast for a two-mana enchantment creature that needs setup to matter. Oathbreaker is legal and the same logic as Commander applies at smaller scale — if your signature spell enables the graveyard plan, Filth can show up. Outside those eternal formats, it's not legal anywhere else.

Key Combos

Combo lines featuring this card

Budget Alternatives

Cheaper options that do most of the same work

The honest answer is that no card does exactly what Filth does at a lower price point — swampwalk granted to your entire team from the graveyard is a unique text box. Cards like Crypt Sliver or Whip of Erebos grant lifelink as incidental evasion-adjacent effects, but if the angle is unblockability, you're better off looking at effects like Shadow or menace on individual creatures rather than a clean replacement for Filth's board-wide static.

Price Context

Current price

$6.13 mid tier

At $6.13, Filth sits in the mid tier — not a snap-include on price alone, but fair for a card with this specific a use case. It's a one-of in singleton formats and has no competitive demand driving the price up, so it's unlikely to climb significantly, but the niche is real enough that it probably stays in this range.