There and Back Again | Dutiful Replicator | Deadeye Navigator

Cards

At the beginning of your precombat main phase,
There and Back Again triggers, putting a lore counter on it.
There and Back Again's third chapter ability triggers, creating a legendary 6/6 Smaug creature token and causing you to sacrifice
There and Back Again.
Activate
Dutiful Replicator by paying ({1} magic symbol) ({U} magic symbol) , blinking it.
When
Dutiful Replicator enters the battlefield, it and
Deadeye Navigator's soulbond ability trigger.
Resolve the
Deadeye Navigator trigger, repairing it and
Dutiful Replicator.
Resolve the
Dutiful Replicator trigger, causing you to pay ({1} magic symbol) to create a copy of the Smaug token.
Put one of the Smaug tokens into your graveyard due to the legend rule.
When the Smaug dies, it triggers, creating fourteen Treasure tokens.
Activate three Treasures by tapping and sacrificing them, adding ({2} magic symbol) ({U} magic symbol) .
Repeat from step 3.
Once you have infinite mana, you may instead target any other token you control using
Dutiful Replicator's ability.