Springheart Nantuko, Mutable Explorer, Squandered Resources, and Nissa, Resurgent Animist

Prerequisites

• Springheart Nantuko on the battlefield
• Mutable Explorer on the battlefield
• Squandered Resources on the battlefield
• Nissa, Resurgent Animist on the battlefield
• available

Steps

1. Play a land
2. When the land enters, Springheart Nantuko triggers, causing you to pay to create a token copy of Mutable Explorer
3. When the Mutable Explorer token enters, it triggers, creating a Mutavault land token that enters tapped
4. When the Mutavault token enters, Springheart Nantuko and Nissa trigger
5. Resolve the Nissa trigger, adding
6. Holding priority, activate Squandered Resources by sacrificing the Mutavault token, adding
7. Resolve the Springheart Nantuko trigger, causing you to pay to create two token copies of Mutable Explorer
8. Repeat from step 3

Results

• Infinite ETB
• Infinite creature tokens
• Infinite landfall triggers