When Urza enters the battlefield, it and Deadeye Navigator's soulbond ability trigger twice.
Resolve both Deadeye Navigator triggers, repairing it and Urza.
Resolve both Urza triggers, creating two 0/0 Construct artifact creature tokens.
Activate Urza's first ability twice by tapping the Constructs, adding .
Repeat.
This crafty loop turns Urza, Lord High Artificer into a self-sustaining manufacturing plant by leveraging its mana-producing tap ability alongside Deadeye Navigator's soulbond-granted blink effect. Because Virtue of Knowledge is sitting on the battlefield doubling permanent-entry triggers, every time Urza flickers back to the battlefield, its entrance spawns two Construct tokens instead of one—giving you fresh artifacts to tap for the blue mana needed to keep Deadeye Navigator firing.