Encroaching Mycosynth + Phyrexian Swarmlord + Time Sieve

BGU identity

Commander legal

The 3 combo pieces

What must be in place

Opponents have at least five poison counters.

How to execute it

  1. At the beginning of your upkeep, Phyrexian Swarmlord triggers, creating at least five 1/1 Phyrexian Insect creature tokens.
  2. Activate Time Sieve by tapping it and sacrificing five Phyrexian Infects, causing you to take an extra turn after this one.
  3. Repeat each turn.

What the combo produces