Emry, Lurker of the Loch + Mirran Spy + Rusted Slasher + Sol Ring

Emry, Lurker of the Loch

Mirran Spy

Rusted Slasher

Sol Ring

How it works

1. Activate Sol Ring by tapping it, adding CC.
2. Activate Rusted Slasher by sacrificing Sol Ring, regenerating Rusted Slasher.
3. Activate Emry by tapping it, allowing yourself to cast Sol Ring from your graveyard this turn.
4. Cast Sol Ring from your graveyard by paying 1.
5. When you cast Sol Ring, Mirran Spy triggers, untapping Emry.
6. Sol Ring resolves.
7. Repeat any number of times.
8. Once you have infinite colorless mana, you may repeat the loop targeting any castable artifact card in your graveyard in step 3 each time.
9. You may also skip step 2 to leave your artifacts on the battlefield, or you may sacrifice Rusted Slasher in step 2 and recast it in step 4 for infinite ETB, LTB, sacrifice, and death triggers.