Coercive Recruiter, Bloodline Keeper // Lord of Lineage, and Xenograft

Prerequisites

• Coercive Recruiter on the battlefield
• Bloodline Keeper // Lord of Lineage on the battlefield
• Xenograft on the battlefield
• Bloodline Keeper does not have summoning sickness
• "Pirate" chosen with Xenograft

Steps

1. Activate Bloodline Keeper by tapping it, creating a 2/2 Vampire creature token
2. When the Vampire enters the battlefield as a Pirate due to Xenograft, Coercive Recruiter triggers, untapping Coercive Recruiter
3. Repeat

Results

• Infinite creature tokens
• Infinite ETB