There and Back Again has exactly two lore counters on it.
({R} magic symbol) available.
Steps
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 Jaxis by paying ({R} magic symbol) , tapping it and discarding a card, creating a token copy of Smaug with haste.
Put the newest Smaug token into your graveyard due to the legend rule.
When the Smaug token dies, it triggers twice, and Jaxis triggers once.
Resolve the first Smaug trigger, causing you to draw a card.
Resolve the second Smaug trigger, creating fourteen Treasure tokens.
Resolve the Jaxis trigger, untapping it.
Activate a Treasure by tapping and sacrificing it, adding ({R} magic symbol) .