Esika's Chariot | There and Back Again | Hellkite Charger

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
Esika's Chariot's crew ability by tapping the Smaug token, causing
Esika's Chariot to become an artifact creature until end of turn.
Declare
Esika's Chariot and
Hellkite Charger as attackers, triggering their abilities.
Resolve the
Esika's Chariot's trigger, creating a copy of the Smaug token.
Put either Smaug token into your graveyard due to the legend rule.
When the Smaug token dies, it triggers, creating fourteen Treasure tokens.
Activate seven Treasures by tapping and sacrificing them, adding ({5} magic symbol) ({R} magic symbol) ({R} magic symbol) .
Resolve the
Hellkite Charger trigger, causing you to pay ({5} magic symbol) ({R} magic symbol) ({R} magic symbol) to untap all attacking creatures and to get an additional combat phase after this one.
Repeat from step 4 each combat phase.

Once you have infinite mana, you may copy any other token(s) you control instead. You may also attack with a Warrior to get infinite creature tokens with haste.