Springheart Nantuko + Amulet of Vigor + Selesnya Sanctuary + Wayward Swordtooth

Springheart Nantuko

Amulet of Vigor

Selesnya Sanctuary

Wayward Swordtooth

How it works

1. Play Selesnya Sanctuary. When it enters, Amulet of Vigor, Selesnya Sanctuary and Springheart Nantuko trigger.
2. Resolve the Amulet of Vigor trigger, untapping Selesnya Sanctuary.
3. Holding priority, activate Selesnya Sanctuary by tapping it, adding .
4. Resolve the Selesnya Sanctuary trigger, returning it from the battlefield to your hand.
5. Resolve the Springheart Nantuko trigger, causing you to pay 1 to create a token copy of Wayward Swordtooth.
6. Because of the additional Wayward Swordtooth token, you can play an additional land this turn.
7. Repeat.

This loop relies on a clever self-returning land engine that continuously feeds your landfall triggers. By playing Selesnya Sanctuary, you trigger Amulet of Vigor to immediately untap it so you can tap it for mana before its own bounce trigger returns it to your hand. Meanwhile, Springheart Nantuko uses that floating mana via its landfall ability to copy Wayward Swordtooth, whose extra land drop ability lets you replay Selesnya Sanctuary and start the cycle over again.