Impostor Syndrome + Fear of Missing Out + The Fire Crystal

Impostor Syndrome

Fear of Missing Out

The Fire Crystal

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 brilliant loop uses Fear of Missing Out as the aggressive engine of an infinitely repeating combat chain. Once delirium is active, attacking with Fear of Missing Out untaps it and grants an extra combat phase, while its enter-the-battlefield trigger helps cycle through your deck by letting you discard and draw a card. Every time it connects for combat damage, Impostor Syndrome swoops in to multiply the threat, spitting out nonlegendary token copies that immediately trigger more card-drawing entry effects. Meanwhile, The Fire Crystal quietly supports the setup from the sidelines by giving all your creatures haste so they can attack right away, while also offering a mana-discount and backup token-making capability if you ever need to kickstart the chaos anew.