Beacon of Immortality, and Defiling Daemogoth

Prerequisites

• Beacon of Immortality in hand
• Defiling Daemogoth on the battlefield
• available

Steps

1. Cast Beacon of Immortality by paying , doubling your life total
2. At the beginning of your end step, Defiling Daemogoth triggers, causing each opponent to lose life equal to the life you've lost this turn

Results

• Near-infinite lifegain
• Near-infinite lifeloss