High Alert, Task Force, and Lightning Greaves

Prerequisites

• High Alert on the battlefield
• Task Force on the battlefield
• Lightning Greaves on the battlefield
• An opponent is unable to block and kill Task Force

Steps

1. Activate Lightning Greaves' equip ability by paying , targeting Task Force
2. Task Force triggers, giving itself +0/+3 until end of turn
3. Resolve the Lightning Greaves ability, attaching it to Task Force
4. Activate Lightning Greaves' equip ability by paying , attaching it to another creature you control
5. Repeat an arbitrarily large number of times
6. Deal combat damage to an opponent with Task Force, causing the opponent to lose the game due to having zero or less life

Results

• Infinite combat damage to an opponent