Earthcraft, Sliver Queen, and Heartbeat of Spring

Prerequisites

• Earthcraft on the battlefield
• Sliver Queen on the battlefield
• Heartbeat of Spring on the battlefield
• available

Steps

1. Activate Sliver Queen by paying , creating a creature token Activate Earthcraft by tapping the creature token, untapping a basic land
2. Activate the land by tapping it, adding Heartbeat of Spring triggers, adding Repeat

Results

• Infinite ETB
• Infinite tapped creature tokens