Felidar Guardian, Deadeye Navigator, and Nykthos, Shrine to Nyx

Prerequisites

• Felidar Guardian on the battlefield
• Deadeye Navigator on the battlefield
• Nykthos, Shrine to Nyx on the battlefield
• Deadeye Navigator is paired with Felidar Guardian
• Your devotion to blue is at least four
• available

Steps

1. Activate Nykthos' second ability by paying and tapping it, adding at least
2. Activate Felidar Guardian by paying , blinking it
3. When Felidar Guardian enters the battlefield, it and Deadeye Navigator's soulbond ability trigger
4. Resolve the Felidar Guardian trigger, blinking Nykthos
5. Resolve the Deadeye Navigator trigger, repairing it and Felidar Guardian
6. Repeat
7. If your devotion to blue is at least five, this combo nets infinite mana

Results

• Infinite blinking
• Infinite ETB
• Infinite landfall triggers
• Infinite LTB
• Infinite mana among colors with which you have devotion