Silas Renn, Seeker Adept + Coretapper + Magistrate's Scepter

Silas Renn, Seeker Adept

Coretapper

Magistrate's Scepter

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 and removing three charge counters from it, causing you to take an extra turn after this one.
4. Move to your combat phase, and deal combat damage to an opponent with Silas Renn.
5. Silas Renn triggers, allowing you to cast Coretapper from your graveyard this turn.
6. Cast Coretapper from your graveyard by paying 2.
7. Repeat each turn.