Sliver Queen, Cloudshredder Sliver, Gemhide Sliver, and Heartstone

Prerequisites

• Sliver Queen on the battlefield
• Cloudshredder Sliver on the battlefield
• Gemhide Sliver on the battlefield
• Heartstone on the battlefield

Steps

1. All slivers have haste
2. Tap a Sliver to generate
3. Use that mana to create a Sliver with Sliver Queen's ability
4. Use the newly created Sliver to repeat the cycle

Results

• Infinite 1/1 sliver tokens
• Infinite ETB