If you don't have the city's blessing, Timesteam Navigator trigges, causing you to get the city's blessing.
When
Timestream Navigator enters the battlefield,
Inalla triggers, causing you to pay ({1} magic symbol) to create a token copy of
Timestream Navigator with haste.
Activate the
Timestream Navigator token by paying ({2} magic symbol) ({U} magic symbol) ({U} magic symbol) , tapping it and putting it on the bottom of your library, causing you to take an extra turn after this one.