Esika's Chariot | There and Back Again | Najeela, the Blade-Blossom

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 as an attacker.
Esika's Chariot's second ability triggers, 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 five Treasures by tapping and sacrificing them, adding ({W} magic symbol) ({U} magic symbol) ({B} magic symbol) ({R} magic symbol) ({G} magic symbol) .
Activate
Najeela by paying ({W} magic symbol) ({U} magic symbol) ({B} magic symbol) ({R} magic symbol) ({G} magic symbol) , untapping all attacking creatures, giving them trample, lifelink and haste, and gaining 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.