Skycoach Waypoint's second ability by paying ({3} magic symbol) and tapping it, causing
Sanar to become prepared.
If
Beacon of Tomorrows 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
Beacon of Tomorrows 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
Beacon of Tomorrows by paying its mana cost, causing you to take an extra turn after this one and shuffle
Beacon of Tomorrows into your library.
Repeat each turn.
Notes
If
Beacon of Tomorrows 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. If
Sanar is prepared to start, you can save ({3} magic symbol) the first iteration.