Tameshi, Reality Architect + Lotus Bloom + Copy Artifact + Great Furnace

Tameshi, Reality Architect

Lotus Bloom

Copy Artifact

Great Furnace

How it works

1. Activate Lotus Bloom by tapping and sacrificing it, adding or .
2. Cast Copy Artifact by paying 1, having it enter the battlefield as a copy of Great Furnace.
3. Activate Copy Artifact by tapping it, adding .
4. Activate Tameshi's second ability by paying and returning Copy Artifact from the battlefield to your hand, returning Lotus Bloom from your graveyard to the battlefield.
5. Repeat.

This clever loop relies on Tameshi, Reality Architect to repeatedly rescue and replay our key artifacts from the graveyard. By activating Tameshi's ability, we pay white mana and bounce Copy Artifact—which is masquerading as a Great Furnace—back to our hand in order to resurrect Lotus Bloom directly onto the battlefield. From there, we can recast Copy Artifact to copy the Great Furnace once more, then sacrifice the newly returned Lotus Bloom for a fresh injection of mana to keep the engine turning. Tameshi's card-drawing trigger isn't even strictly needed to fuel the loop, but it's a welcome bonus as you churn through your deck generating infinite colored mana, landfall triggers, and storm count!