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Echoes of Eternity

Kindred Enchantment — Eldrazi

If a triggered ability of a colorless spell you control or another colorless permanent you control triggers, that ability triggers an additional time.
Whenever you cast a colorless spell, copy it. You may choose new targets for the copy. (A copy of a permanent spell becomes a token.)

CMC
6
Mana cost
{3}{C}{C}{C}
Color identity
C
Rarity
rare
Set
Modern Horizons 3 Promos
Price
—
EDHREC rank
#1503
Buy on TCGplayer
Echoes of Eternity card art
Echoes of Eternity doubles every triggered ability from colorless sources you control — the moment it resolves, any Eldrazi or artifact trigger you generate hits twice, which turns already-punishing annihilator and cast triggers into table-ending events. The catch is six mana and zero protection built in, so it dies to any removal spell before it does anything. Run it because the ceiling is broken; accept that the floor is a six-mana do-nothing, which is exactly the deal Ulalek, Fused Atrocity is willing to make.

Best Commanders

Commanders with the highest synergy

01
Ulalek, Fused Atrocity

Ulalek, Fused Atrocity

82.0% of decks · synergy 0.76

Ulalek, Fused Atrocity copies spells whenever you cast another colorless spell, and Echoes of Eternity then doubles every trigger Ulalek generates — turning one cast into a cascade of replicated effects that can win the game on the spot.

02
Herigast, Erupting Nullkite

Herigast, Erupting Nullkite

31.2% of decks · synergy 0.31

Herigast, Erupting Nullkite generates cast triggers and exile-matters payoffs, and Echoes of Eternity doubling those triggers means each Eldrazi you hard-cast rewards you twice over.

03
Ultima, Origin of Oblivion

Ultima, Origin of Oblivion

84.3% of decks · synergy 0.23

Ultima, Origin of Oblivion runs a wide suite of Eldrazi cast triggers, and Echoes of Eternity converts every one of those into a doubled trigger — stacking annihilator, drain, and mill effects that spiral out of control quickly.

04
Belbe, Corrupted Observer

Belbe, Corrupted Observer

18.3% of decks · synergy 0.18

Belbe, Corrupted Observer produces colorless mana from opponents losing life, and Echoes of Eternity doubling combat damage and trigger-based effects accelerates the mana engine just enough to enable explosive turns well ahead of schedule.

Format Analysis

Where it lives, where it can’t

FormatVerdict
commander legal
legacy legal
modern legal
pioneer not legal
standard not legal
vintage legal
pauper not legal
oathbreaker legal

Echoes of Eternity is legal in Commander, Legacy, Modern, Vintage, and Oathbreaker, but Commander is the only format where it realistically sees play. In Legacy and Vintage, six mana for an enchantment with no immediate board impact is unplayable — the formats move too fast and interact too efficiently for this to survive long enough to matter. Modern is theoretically legal but the same logic applies: six mana enchantments need to win the game immediately, and Echoes of Eternity requires a board state of colorless triggers to do anything. Commander is where the card lives, specifically in Eldrazi and artifact-heavy builds that generate so many colorless triggers that doubling them creates an insurmountable advantage.

Key Combos

Combo lines featuring this card

Price Context

Current price

unknown tier

Pricing data for Echoes of Eternity isn't confirmed in our current feed, so check Scryfall or TCGPlayer for the live number. Given its 82% inclusion rate in Ulalek decks and near-mythic status in the Eldrazi archetype, expect it to carry a meaningful price tag — it's not a bulk rare.

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Sources

Mentioned

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Updated . Data from Scryfall, EDHREC, and Commander Spellbook.