Emiel the Blessed, Felidar Guardian, and Serra's Sanctum

Prerequisites

• Emiel the Blessed on the battlefield
• Felidar Guardian on the battlefield
• Serra's Sanctum on the battlefield
• You control at least four enchantments

Steps

1. Activate Serra's Sanctum by tapping it, adding at least
2. Activate Emiel by paying , blinking Felidar Guardian
3. When Felidar Guardian enters the battlefield, it triggers, blinking Serra's Sanctum
4. Repeat

Results

• Infinite blinking of permanents you control
• Infinite ETB
• Infinite landfall triggers
• Infinite LTB
• Infinite mana permanents you control can produce
• Infinite blinking