Cast Approach of the Second Sun by paying {6}{W}.
Holding priority, cast Endless Detour by paying {G}{W}{U}, putting Approach of the Second Sun on top of your library.
Draw Approach of the Second Sun from your library.
Cast Approach of the Second Sun by paying {6}{W}, causing you to win the game.

Win the game

Endless Detour

Approach of the Second Sun

During the opponent's end step immediately before your turn, cast Approach of the Second Sun by paying {6}{W} using Leyline of Anticipation.
In response, cast Endless Detour by paying its mana cost, putting Approach of the Sun on top of your library.
In your draw step, draw Approach of the Second Sun.
Cast Approach of the Second Sun by paying {6}{W}, winning the game.

Combos with "Endless Detour"