Steward of the Harvest, Staff of Domination, and Serra's Sanctum

Prerequisites

• Steward of the Harvest on the battlefield
• Staff of Domination on the battlefield
• Serra's Sanctum in exile

Steps

1. Activate a creature using Serra's Sanctum's ability by tapping it, adding at least
2. Activate Staff of Domination's third ability by paying , untapping the creature
3. Activate Staff of Domination's first ability by paying , untapping it
4. Repeat

Results

• Infinite lifegain triggers
• Infinite lifegain
• Infinite card draw
• Infinite untap of creatures you control
• Infinite draw triggers
• Infinite mana creatures you control can produce
• Infinite white mana