River Song + Transplant Theorist + Time Warp

River Song

Transplant Theorist

Time Warp

How it works

1. Cast Time Warp by paying 3, causing you to take an extra turn after this one.
2. Activate Transplant Theorist by paying 2, causing you to put Time Warp on the bottom of your library from your graveyard.
3. Move to your next turn, drawing Time Warp from the bottom of your library due to River Song during your draw step.
4. Repeat.

By utilizing River Song to fundamentally alter how you draw cards from the bottom of your library rather than the top, this loop turns your graveyard into your deck's true reservoir. Transplant Theorist acts as the engine, allowing you to pay mana to recycle Time Warp directly to the bottom of your library whenever you need to secure another extra turn. Once Time Warp resolves and heads to the graveyard, Transplant Theorist's ability tucks it neatly away where River Song's replacement effect can seamlessly feed it right back into your hand at the start of your next turn.