If Sanar isn't prepared, activate Skycoach Waypoint's second ability by paying {3} and tapping it, causing Sanar to become prepared.
If Nexus of Fate is in your library, cast a copy of Wild Idea by paying {3}{U}{R}, searching your library for Nexus of Fate and putting it into your hand.
If Sanar doesn't have summoning sickness, activate it by tapping it, creating a Treasure token. Then, activate the Treasure by tapping and sacrificing it, adding {U}.
Cast Nexus of Fate by paying its mana cost, causing you to take an extra turn after this one and shuffle Nexus of Fate into your library.
Repeat each turn.

Infinite turns

Lock

Sanar, Unfinished Genius // Wild Idea

Skycoach Waypoint

Nexus of Fate

If Nexus of Fate is in your library, cast a copy of Wild Idea by paying {3}{U}{R}, searching your library for Nexus of Fate and putting it into your hand.
If Sanar doesn't have summoning sickness, activate it by tapping it, creating a Treasure token. Then, activate the Treasure by tapping and sacrificing it, adding {U}.
Cast Nexus of Fate by paying its mana cost, causing you to take an extra turn after this one and shuffle Nexus of Fate into your library.
Activate Sanar by paying {1}{U}, blinking Sanar. It'll enter prepared due to its static effect.
When Sanar enters, Deadeye Navigator's soulbond ability triggers, repairing Sanar and Deadeye Navigator.
Repeat each turn.

Combos with "Sanar, Unfinished Genius // Wild Idea"