Time Sieve + Biotransference + Elemental Mastery

Time Sieve

Biotransference

Elemental Mastery

How it works

1. Activate the creature with Elemental Mastery attached by tapping it, creating at least five 1/1 Elemental creature tokens.
2. Activate Time Sieve by tapping it and sacrificing five Elemental tokens, causing you to take an extra turn after this one.
3. Repeat each turn.

By turning every creature you control into an artifact thanks to Biotransference, you lay the foundational machinery needed to manipulate time itself. Enchanting your creature with Elemental Mastery lets you tap it to flood the board with haste-granting tokens that instantly count as artifacts, perfectly feeding the five-sacrifice requirement of Time Sieve. Once the engine is set in motion, you simply cash in your newly minted artifact tokens each turn to chain infinite extra turns and lock the game down entirely.