Activate Tanazir by paying {1}{U}, blinking it.
Tanazir enters the battlefield, triggering itself and Deadeye Navigator's soulbond ability.
Resolve the Tanazir trigger, doubling the number of +1/+1 counters on Crystalline Crawler.
Resolve the Deadeye Navigator trigger, repairing it and Crystalline Crawler.
Activate Crystalline Crawler's first ability twice by removing two +1/+1 counters from it, adding {1}{U}.
Repeat.

Infinite +1/+1 counters on certain creatures

Infinite blinking

Infinite colored mana

Infinite creature ETB

Infinite creature LTB

Tanazir Quandrix

Deadeye Navigator

Crystalline Crawler

Activate Emiel by paying {3}, blinking Tanazir.
Tanazir enters the battlefield, doubling the number of +1/+1 counters on Crystalline Crawler.
Activate Crystalline Crawler's first ability three times by removing three +1/+1 counters from it, adding {3}.
Repeat.

Emiel the Blessed

Activate Eldrazi Displacer by paying {2}{C}, blinking Tanazir.
Tanazir enters the battlefield, doubling the number of +1/+1 counters on Cryptic Trilobite.
Activate Cryptic Trilobite's first ability twice by removing two +1/+1 counters from it, adding {C}{C}{C}{C} that can only be spent to activate abilities.
Repeat.

Infinite colorless mana that can only be spent to activate abilities

Eldrazi Displacer

Cryptic Trilobite

Activate Emiel by paying {3}, blinking Tanazir.
Tanazir enters the battlefield, doubling the number of +1/+1 counters on Cryptic Trilobite.
Activate Cryptic Trilobite's first ability twice by removing two +1/+1 counters from it, adding {C}{C}{C}{C} that can only be spent to activate abilities.
Repeat.

Combos with "Tanazir Quandrix"