Impostor Syndrome + Fear of Missing Out + Garna, the Bloodflame

Impostor Syndrome

Fear of Missing Out

Garna, the Bloodflame

How it works

1. Declare Fear of Missing Out as an attacker, triggering its ability, causing you to untap it and to get an additional combat phase after this one.
2. Deal combat damage to an opponent using Fear of Missing Out, triggering Impostor Syndrome, creating a token copy of Fear of Missing Out that isn't legendary.
3. When the Fear of Missing Out token enters, it triggers, causing you to rummage
4. During your next combat phase, declare Fear of Missing Out and the Fear of Missing Out token as attackers.
5. The Fear of Missing Out token triggers, causing you to untap the nontoken Fear of Missing Out and to get an additional combat phase after this one.
6. Repeat from step 2.

This loop revolves around Fear of Missing Out and its delirious combat trigger, which grants an extra combat phase and an untap each time it attacks. By using Impostor Syndrome to clone Fear of Missing Out whenever it deals combat damage, you flood the board with new copies that keep chaining additional combat steps indefinitely. Meanwhile, Garna, the Bloodflame provides a vital static boost by giving all your creatures haste so the fresh tokens can immediately join the fray without waiting around.