I found a few lines, all of which required a criteria to be met by your opponents except for one. One of the lines I found if you have 1 opponent open to attack: || this line requires an opponent to be wide open to attach with voice making and keeping 2 tokens. Upkeep: 1: Tap Volcanic Island for Mystical Tutor → put Culling the Weak on top of library. Combat 2. Move to combat, attack whoever's open → make 2 Soldier tokens. Main Phase 2 3. Play Underground Sea. 4. Sac Lotus Petal for R → cast Dragon's Rage Channeler. 5. Tap Chrome Mox to cast Imp Seal, milling the top card to graveyard via DRC's Surveil trigger. 6. With Imp's Seal, put Underworld Breach on top of library. 7. Tap Underground Sea + sac a Soldier token → cast Culling the Weak → DRC trigger puts Breach in the graveyard. 8. Tap Scrubland, use BB to cast Sevinne's Reclamation targeting Underworld Breach → DRC trigger mills a card. 9. Cast Underworld Breach, exiling 3 cards from graveyard → DRC trigger mills a card. 10. Cast Lotus Petal, exiling 3 cards from graveyard → DRC trigger mills a card 11. Sac Lotus Petal for U 12. Cast Intuition, exiling 3 cards from graveyard → DRC trigger mills a card. 13. With Intuition, search for Brain Freeze, LED, Mox Diamond (mox is good because it can pitch land for GY fodder) 14. Assuming opponent puts Brain Freeze into your hand. 15. Cast LED, exiling 3 cards from graveyard → DRC trigger mills a card 16. Tap LED, discard hand, make UUU. 17. Cast Brain Freeze targeting yourself to now safely fill your graveyard 18. With LED + Brainfreeze loop online choose and execute your win condition like brainfreeze opponents or thoracle ||

The shortest line I have found that does not require anything of your opponents or combat is: || Upkeep 1. Tap Volcanic Island for Mystical Tutor → put Dark Ritual on top of library. Main Phase 2. Play Underground Sea. 3. Sac Lotus Petal for R → cast Dragon's Rage Channeler (DRC). 4. Tap Chrome Mox and cast Imperial Seal → DRC trigger mills a card 5. Using Imp Seal put underworld breach ontop of your library 6. Tap Underground Sea to cast Dark Ritual → DRC trigger mills Underworld Breach to your GY 7. Tap Scrubland for W and cast Savvines targeting Underworld breach (this will leave B floating) → DRC trigger mills a card 8. Cast Imperial Seal, exiling 3 cards from graveyard → DRC trigger mills a card 9. Put Lions Eye Diamond on top 10. Cast Imperial Seal again → DRC trigger mills LED to GY 11. Imp Seal puts Brain Freeze on top 12. Cast LED, exiling 3 cards from graveyard → DRC trigger mills Brain Freeze to GY 13. Sac LED for UUU discarding your hand 14. Cast Brain Freeze targeting yourself to now safely fill your graveyard 15. With LED + Brainfreeze loop online choose and execute your win condition like brainfreeze opponents or thoracle ||

thats it!!!! congrats :)