Time Sieve + Myr Battlesphere + Teleportation Circle + Primal Vigor

Time Sieve

Myr Battlesphere

Teleportation Circle

Primal Vigor

How it works

1. At the beginning of your end step, Teleportation Circle triggers, blinking Myr Battlesphere.
2. When Myr Battlesphere enters the battlefield, its first ability triggers, creating eight 1/1 Myr artifact creature tokens due to Primal Vigor.
3. Activate Time Sieve by tapping it and sacrificing five Myrs, causing you to take an extra turn after this one.
4. Repeat each turn.

This clever loop achieves infinite turns by turning your end step into a steady stream of artifact sacrifices, anchored by **Teleportation Circle** to continuously recycle **Myr Battlesphere**. Every time the Battlesphere returns, its entry trigger normally makes four tokens, but the brilliant addition of **Primal Vigor** doubles that output to eight Myr artifact creature tokens—comfortably exceeding the five you need to feed **Time Sieve**. With a fresh batch of fodder delivered at the end of every turn cycle and Time Sieve cashing them in for an extra turn, you simply repeat this process indefinitely to lock down the game.