Outrider en-Kor, Task Force, and Miren, the Moaning Well

Prerequisites

• Outrider en-Kor on the battlefield
• Task Force on the battlefield
• Miren, the Moaning Well on the battlefield
• Miren, the Moaning Well must be untapped available

Steps

1. Pay to activate Outrider en-Kor, targeting Task Force
2. Task Force triggers, giving itself +0/+3 untill end of turn
3. Repeat steps 1-2 untill Task Force has infinite toughness
4. Pay and tap Miren, the Moaning Well, sacrificing Task Force and gaining life equal to its toughness

Results

• Infinite lifegain