Requires

Drafna, Founder of Lat-Nam must be on the battlefield. Timestream Navigator must be in hand. Encroaching Mycosynth must be on the battlefield. Akroma's Memorial must be on the battlefield. Mana needed: each turn

Steps

1. Cast Timestream Navigator by paying .
2. Holding priority, activate Drafna's second ability by paying and tapping it, copying Timestream Navigator.
3. When the Timestream Navigators enter the battlefield, if you do not have the city's blessing, they trigger, giving you the city's blessing.
4. Activate Drafna's first ability by paying , returning the nontoken Timestream Navigator from the battlefield to your hand.
5. Activate the Timestream Navigator token by paying , tapping it and putting it on the bottom of your library, causing you to take an extra turn after this one.
6. Repeat from step 2 each turn.

Results