Morophon, the Boundless + Saffi Eriksdotter + Eternal Witness + Altar of Dementia

4-card combo · WUBRG

Verdict

Yes — this 4-card loop mills every opponent's library to zero with zero mana once Morophon names Human or Scout.

Cards required

Cheapest stack total

$27.91

Color identity

WUBRG

Popularity

0 decks

Format

Commander

Buy required cards on TCGplayer

Morophon, the Boundless reduces Saffi Eriksdotter's white-green cost to zero, letting the loop cycle indefinitely: Saffi sacrifices itself to protect Eternal Witness, Eternal Witness dies to Altar of Dementia, each triggers to return the other, and Saffi recasts for free. The table sees infinite death and ETB triggers, infinite storm count, and enough mill to empty every library — all at instant-like speed once the four pieces are assembled.

How it works

Prerequisites

"Human" or "Scout" chosen with Morophon..

Steps

Activate Saffi by sacrificing it, targeting Eternal Witness.
Activate Altar of Dementia by sacrificing Eternal Witness.
When Eternal Witness dies, Saffi triggers, returning it from your graveyard to the battlefield.
When Eternal Witness enters the battlefield, it triggers, returning Saffi from your graveyard to your hand.
Resolve the Altar of Dementia ability from step 2, causing target player to mill cards equal to Eternal Witness's power.
Cast Saffi by paying due to Morophon.
Repeat.

Result

Infinite death triggers; Infinite ETB; Infinite LTB; Infinite mill; Infinite sacrifice triggers; Infinite self-mill; Infinite storm count

Cheaper, tighter, alternate lines

Blasting Station or Goblin Bombardment can replace Altar of Dementia if mill isn't the kill condition — the death-trigger engine is identical, only the win condition swaps. Any tutor chain that finds Eternal Witness first — Worldly Tutor, Eladamri's Call, Green Sun's Zenith — typically assembles the loop fastest, since Witness recurs whatever piece comes up short.

Morophon, the Boundless + Saffi Eriksdotter + Eternal Witness + Altar of Dementia

How it works

Cheaper, tighter, alternate lines

Other combos sharing these cards