Infinite artifact ETBInfinite artifact LTBInfinite artifact sacrifice triggersInfinite artifact tokensInfinite creature LTBInfinite creature ETBInfinite colored manaInfinite death triggersInfinite storm countInfinite magecraft triggersInfinite Treasure tokensTarget opponent returns all cards in their graveyard to their handInfinite copies of creatures you control with haste
How it works
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.
Cast Twinflame by paying 3, creating a token copy of the Smaug token and Skullwinder with haste.
Put either Smaug token into your graveyard due to the legend rule.
The Smaug token that died and the Skullwinder token trigger.
Resolve the Smaug trigger, creating fourteen Treasure tokens.
Resolve the Skullwinder trigger, returning Twinflame from your graveyard to your hand.
Activate five Treasures by tapping and sacrificing them, adding 3.