Morophon, the Boundless + Saffi Eriksdotter + Eternal Witness + Phyrexian Altar
4-card combo · WUBRG
Verdict
Yes — this 4-card loop generates infinite colored mana and infinite death triggers the moment Saffi Eriksdotter costs zero.
- Cards required
- 4
- Cheapest stack total
- $57.51
- Color identity
- WUBRG
- Popularity
- 2 decks
- Format
- Commander
Morophon, the Boundless naming Human drops Saffi Eriksdotter to free, which is the hinge the whole loop depends on: Saffi sacrifices to protect Eternal Witness, Phyrexian Altar sacrifices Eternal Witness for one mana, Saffi's trigger returns Eternal Witness to the battlefield, and Eternal Witness returns Saffi to hand to recast at zero. The table sees a WUBRG commander deck that wins the moment it assembles Morophon plus any aristocrats payoff alongside the two Humans and the Altar.
Recipe
How it works
01
Prerequisites
"Human" or "Scout" chosen with Morophon..
02
Steps
- Activate Saffi by sacrificing it, targeting Eternal Witness.
- Activate Phyrexian Altar by sacrificing Eternal Witness, adding one mana of any color.
- 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.
- Cast Saffi by paying
due to Morophon.
- Repeat.
03
Result
Infinite colored mana; Infinite death triggers; Infinite ETB; Infinite LTB; Infinite sacrifice triggers; Infinite storm count
Variations
Cheaper, tighter, alternate lines
Naming Scout instead of Human works identically since both Saffi and Eternal Witness carry that type, giving the loop redundancy against Morophon being bounced and replayed with a different choice. Close out with Zulaport Cutthroat or Blood Artist on the drain angle, or Altar of Dementia to mill the table — the loop floods death triggers but needs a sink to end the game.
Verified on Commander Spellbook · Combo ID eternal-witness-phyrexian-altar-saffi-eriksdotter-2
Updated . Data from Commander Spellbook, Scryfall, and EDHREC.









