The Master, Multiplied + Cybermen Squadron + Biotransference + Combat Celebrant

The Master, Multiplied

Cybermen Squadron

Biotransference

Combat Celebrant

How it works

1. Declare Combat Celebrant as an attacker, choosing to exert it as it attacks.
2. Combat Celebrant's myriad and printed abilities trigger.
3. Resolve the myriad trigger, creating a token copy of Combat Celebrant attacking each other opponent.
4. Resolve the second trigger, causing you to untap all other creatures you control and to get an additional combat phase after this one.
5. Move to your next combat phase, not exiling the Combat Celebrant tokens due to The Master.
6. Repeat using a Combat Celebrant token that hasn't attacked this turn.

This brilliant sequence relies on Biotransference to turn your entire team into artifacts, which in turn grants them myriad from Cybermen Squadron. When you march into battle with a creature like Combat Celebrant, its myriad trigger creates token copies attacking your other opponents, while exerting it unlocks an additional combat phase. Normally, these tokens would vanish into exile at the end of combat, but The Master, Multiplied steps in with its protective static ability to completely shut down token exile and the legend rule. This allows your exponential army of Combat Celebrant tokens to stick around, untap, and surge forward into infinite combat phases.