Sefris of the Hidden Ways + Radiant Solar + Sun Titan + Karmic Guide + Phyrexian Altar

Sefris of the Hidden Ways

Radiant Solar

Sun Titan

Karmic Guide

Phyrexian Altar

How it works

1. Activate Phyrexian Altar by sacrificing Karmic Guide.
2. Sefris' first ability triggers, causing you to venture into the final room of a dungeon, causing you to complete the dungeon.
3. Sefris' second ability triggers. Holding priority, activate Phyrexian Altar twice by sacrificing Sefris and Sun Titan.
4. Resolve the Sefris trigger, returning Karmic Guide from your graveyard to the battlefield.
5. When Karmic Guide enters, it and Radiant Solar trigger.
6. Resolve the Radiant Solar trigger, venturing into Lost Mine of Phandelver and into the Cave Entrace room, causing you to scry 1.
7. Resolve the Karmic Guide trigger, returning Sun Titan from your graveyard to the battlefield.
8. When Sun Titan enters, it and Radiant Solar trigger.
9. Resolve the Radiant Solar trigger, venturing into Lost Mine of Phandelver and into either available room.
10. Resolve the Sun Titan trigger, returning Sefris from your graveyard to the battlefield.
11. When Sefris enters, Radiant Solar triggers, venturing into Lost Mine of Phandelver and into any available room.
12. Repeat.