Delina, Wild Mage + Kediss, Emberclaw Familiar + Fiendish Duo

Prerequisites

Delina is your commander and does not have summoning sickness. An opponent is unable to block and kill creatures you control.

Steps

1. Declare Delina as an attacker.
2. Delina triggers, creating at least one token copy of Fiendish Duo that is tapped and attacking.
3. Deal combat damage with Delina, dealing at least twelve commander damage to an opponent.
4. Kediss triggers, causing Delina to deal at least forty-eight damage to each other opponent.