Heartless Hidetsugu, With Great Power..., and Furnace of Rath

Prerequisites

• Heartless Hidetsugu on the battlefield
• With Great Power
• on the battlefield
• Furnace of Rath on the battlefield

Steps

1. Activate Heartless Hidetsugu by tapping it, dealing damage to each opponent equal to half their life total, rounded down, times 2, and dealing no damage to you due to With Great Power

Results

• Near-infinite damage