Coretapper + Magistrate's Scepter + Dakkon, Shadow Slayer + Brago, King Eternal

Coretapper

Magistrate's Scepter

Dakkon, Shadow Slayer

Brago, King Eternal

How it works

1. Activate Coretapper's first ability by tapping it, putting a charge counter on Magistrate's Scepter.
2. Activate Coretapper's second ability by sacrificing it, putting two charge counters on Magistrate's Scepter.
3. Activate Magistrate's Scepter's second ability by tapping it and removing three charge counters from it, taking an extra turn after this one.
4. Deal combat damage to an opponent using Brago.
5. Brago triggers, blinking Dakkon.
6. Activate Dakkon's third loyalty ability by removing six loyalty counters from it, returning Coretapper from your graveyard to the battlefield.
7. Repeat each turn.