Kenrith, the Returned King + Smothering Tithe + Nyxbloom Ancient + Biomancer's Familiar

4-card combo · WUBRG

Verdict

Yes — this 4-card loop generates infinite mana, infinite draws, and wins the game on the spot in any 5-color shell that can assemble the pieces.

Cards required: 4
Cheapest stack total: $2.54
Color identity: WUBRG
Popularity: 450 decks
Format: Commander

Buy required cards on TCGplayer

Biomancer's Familiar reduces Kenrith, the Returned King's activated abilities to half cost, so the blue draw trigger costs 1U instead of 2U; Nyxbloom Ancient triples mana from each source, meaning a single Treasure from Smothering Tithe produces 3 blue instead of 1, netting mana on every iteration. The loop requires opponents to skip Smothering Tithe's tax entirely — one opponent with two spare mana breaks the chain cold.

Recipe

How it works

Prerequisites

Opponents are unable to pay for Smothering Tithe's trigger.

Steps

Activate Kenrith's third ability by paying , causing target opponent to draw a card.
Smothering Tithe triggers, creating a Treasure token.
Activate a Treasure token by tapping and sacrificing it, adding .
Repeat.

Result

Infinite card draw; Infinite colored mana; Infinite lifegain triggers; Infinite lifegain; Infinite card draw for any number of players; Return all creature cards from all graveyards to the battlefield under your control; Infinite draw triggers for any number of opponents; Infinite +1/+1 counters on creatures you control

Variations

Cheaper, tighter, alternate lines

Without Nyxbloom Ancient, the Treasure output doesn't outpace the activation cost, making it the hardest piece to replace; Training Grounds or Biomancer's Familiar alone won't bridge that gap without a different mana multiplier. Once the loop is running, Kenrith's own activated abilities close the game — drain opponents with the black life-loss ability or return every creature from all graveyards to the battlefield under your control with the green ability, no additional cards needed.