Cast Storm Herd by paying {8}{W}{W}, creating a number of token copies of Exalted Sunborn equal to twice your life total due to Moonlit Meditation.
Whenever you create one or more tokens, you will instead create 2^X times that many tokens, where X is the number of Exalted Sunborns you control.

Near-infinite ETB

Near-infinite creature tokens

Near-infinite token doubling

Moonlit Meditation

Exalted Sunborn

Storm Herd

At the beginning of your combat phase, Legion Warboss triggers, creating a token copy of Timestream Navigator due to Moonlit Meditation and giving that token haste until end of turn.
If you do not have the city's blessing, the Timestream Navigator token will give you the city's blessing.
Activate the Timestream Navigator token by paying {2}{U}{U}, tapping it and putting it from the battlefield onto the bottom of your library, causing you to take an extra turn after this one.
Repeat each turn.

Combos with "Moonlit Meditation"