Holding priority, activate Drafna's second ability by paying ({3} magic symbol) and tapping it, copying Timestream Navigator.
When the Timestream Navigators enter the battlefield, if you do not have the city's blessing, they trigger, giving you the city's blessing.
Activate Drafna's first ability by paying ({1} magic symbol) ({U} magic symbol) , returning the nontoken Timestream Navigator from the battlefield to your hand.
Activate Lightning Greaves' equip ability by paying ({0} magic symbol) , attaching it to the Timestream Navigator token.
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.