Ethereal Forager + Meticulous Excavation + Temporal Manipulation

Ethereal Forager

Meticulous Excavation

Temporal Manipulation

How it works

1. Declare Ethereal Forager as an attacker.
2. Ethereal Forager triggers, returning Temporal Manipulation from exile to your hand.
3. Activate Termur Sabertooth by paying 2, returning Ethereal Forager to your hand from the battlefield.
4. Move to your postcombat main phase.
5. Cast Temporal Manipulation by paying 3, causing you to take an extra turn after this one.
6. Cast Ethereal Forager by paying 3 and exiling Temporal Manipulation from your graveyard.
7. Chulane triggers, causing you to draw a card and allowing you to put a land from your hand onto the battlefield.
8. Repeat each turn.

This elegant loop relies on Ethereal Forager's delve ability and attack trigger to continually recycle Temporal Manipulation from the graveyard back to your hand, securing infinite turns. To reset the Forager and replay it so it can exile the spell anew, Meticulous Excavation steps in as the mechanical engine, bouncing the creature back to your hand for the cost of {2}{W}. Because Temporal Manipulation keeps granting you extra turns, you can repeat this attack-and-bounce cycle indefinitely to lock down the game.