Nexus of Fate is in your library, cast a copy of Wild Idea by paying ({3} magic symbol) ({U} magic symbol) ({R} magic symbol) , 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} magic symbol) .
Cast
Nexus of Fate by paying its mana cost, causing you to take an extra turn after this one and shuffle
Sanar is returned to the battlefield. It'll enter prepared due to its static effect.
Repeat each turn.
Notes
If
Nexus of Fate is in your hand to start, you can skip step 1 the first iteration and save ({3} magic symbol) ({U} magic symbol) ({R} magic symbol) during that iteration. If
Sanar starts with summoning sickness, you need an additional ({U} magic symbol) the first iteration.