Flameshadow Conjuring + Temur Sabertooth + Great Whale

Flameshadow Conjuring

Temur Sabertooth

Great Whale

How it works

1. Activate up to seven lands you control by tapping them, adding at least 2.
2. Cast Great Whale by paying 5.
3. When Great Whale enters the battlefield, it and Flameshadow Conjuring trigger.
4. Resolve the Great Whale trigger, untapping up to seven lands you control.
5. Activate up to seven lands you control by tapping them, adding at least 2.
6. Resolve the Flameshadow Conjuring trigger, causing you to pay to create a token copy of Great Whale with haste.
7. When the token Great Whale enters the battlefield, it triggers, untapping up to seven lands you control.
8. Activate Temur Sabertooth by paying 1, returning the nontoken Great Whale from the battlefield to your hand.
9. Repeat.
10. If you control up to seven lands that can tap to produce at least 2, this combo nets infinite mana.

This clever loop relies on Great Whale’s generous enter-the-battlefield trigger to constantly replenish your mana supply while Flameshadow Conjuring provides a steady stream of temporary token copies for a single red mana. By utilizing Temur Sabertooth's activated ability to bounce the original Great Whale back to your hand, you can recast it repeatedly to keep the cascade of land untaps flowing. This engine ultimately churns out an endless supply of hasty whales, infinite mana, and endless entry triggers, provided your lands can generate the requisite green, red, and blue mana to sustain the cycle.