Outrider en-Kor, Angelic Protector, and Worthy Cause

Prerequisites

• Outrider en-Kor on the battlefield
• Angelic Protector on the battlefield
• Worthy Cause in hand
• available

Steps

1. Pay to activate Outrider en-Kor, targeting Angelic Protector
2. Angelic Protector triggers, giving itself +0/+3 untill end of turn
3. Repeat steps 1-2 untill Angelic Protector has infinite toughness
4. Pay to cast Worthy Cause, sacrificing Angelic Protector and gaining life equal to its toughness

Results

• Infinite lifegain