Pitiless Plunderer + Eternal Witness + Mitotic Slime + Nethroi, Apex of Death + Bloodflow Connoisseur

5-card combo · WBG

Verdict

Yes — this 5-card Nethroi loop generates infinite mana, infinite tokens, and infinite counters on Bloodflow Connoisseur through a precise sacrifice chain that reassembles itself every iteration.

Cards required: 5
Cheapest stack total: $7.27
Color identity: WBG
Popularity: 0 decks
Format: Commander

Buy required cards on TCGplayer

The engine runs on Nethroi's mutate trigger returning Eternal Witness and Mitotic Slime each loop: Eternal Witness hands Nethroi back to hand, Mitotic Slime splits into cascading Ooze tokens, and Pitiless Plunderer converts every death into Treasure. Bloodflow Connoisseur is the sacrifice outlet that keeps the chain tight — sacrificing Nethroi before its trigger resolves is the critical timing move that lets the whole loop refund itself. This lives in Nethroi, Apex of Death as the commander, where the mutate cost is always accessible and the graveyard is already the resource engine.

Recipe

How it works

Prerequisites

You control at least one non-Human creature.

Steps

Cast Nethroi either from your hand or from the command zone for its mutate cost by paying plus commander tax, if applicable, putting it on top of a non-Human creature you control.
When Nethroi enters the battlefield, it triggers.
Holding priority, activate Bloodflow Connoisseur by sacrificing Nethroi.
When Nethroi dies, Pitiless Plunderer triggers, creating a Treasure artifact token.
Resolve the Bloodflow Connoisseur ability, putting a +1/+1 counter on it.
Resolve the Nethroi trigger from step 2, returning Eternal Witness and Mitotic Slime from your graveyard to the battlefield.
When Eternal Witness enters the battlefield, it triggers, returning Nethroi from your graveyard to your hand.
Activate Bloodflow Connoisseur twice by sacrificing Eternal Witness and Mitotic Slime.
When Eternal Witness and Mitotic Slime die, Pitiless Plunderer triggers twice and Mitotic Slime triggers once.
Resolve both Pitiless Plunderer triggers, creating two Treasure artifact tokens.
Resolve the Mitotic Slime trigger, creating two 2/2 Ooze creature tokens.
Resolve both Bloodflow Connoisseur abilities, putting two +1/+1 counters on it.
Activate Bloodflow Connoisseur twice by sacrificing two Oozes.
When the Oozes die, they each trigger and Pitiless Plunderer triggers twice.
Resolve both Pitiless Plunderer triggers, creating two Treasure artifact tokens.
Resolve both Ooze triggers, creating four 1/1 Ooze creature tokens.
Resolve both Bloodflow Connoisseur abilities, putting two +1/+1 counters on it.
Activate Bloodflow Connoisseur twice by sacrificing two Oozes.
When the Oozes die, Pitiless Plunderer triggers twice, creating two Treasure artifact tokens.
Resolve both Bloodflow Connoisseur abilities, putting two +1/+1 counters on it.
Activate the seven Treasures by tapping and sacrificing them, adding .
Repeat.

Result

Infinite +1/+1 counters on a creature; Infinite colored mana; Infinite creature tokens; Infinite death triggers; Infinite ETB; Infinite LTB; Infinite sacrifice triggers; Infinite storm count; Infinite Treasure tokens

Variations

Cheaper, tighter, alternate lines

Viscera Seer or Carrion Feeder can replace Bloodflow Connoisseur as the free sacrifice outlet, though they lose the infinite-counter output. If Eternal Witness is unavailable, Skullwinder covers the recursion role in Sultai colors. The loop produces infinite mana and a board of tokens, but still needs a win condition — Altar of Dementia, Blood Artist, or Walking Ballista converts the output into an actual kill.