Exalted Flamer of Tzeentch and Sundial of the Infinite on the battlefield.
You have no instants and/or sorceries in your graveyard.
({R} magic symbol) ({R} magic symbol) the first turn, with ({1} magic symbol) ({R} magic symbol) ({R} magic symbol) available each extra turn available.
Steps
Cast Last Chance by paying ({R} magic symbol) ({R} magic symbol) .
Exalted Flamer of Tzeentch's second ability triggers, dealing 1 damage to each opponent.
Resolve Last Chance, causing you to take an extra turn after this one.
Move to your extra turn.
At the beginning of your upkeep, Exalted Flamer of Tzeentch's first ability triggers, returning Last Chance from your graveyard to your hand.
Repeat steps 1-3 one additional time.
At the beginning of your end step, Last Chance triggers.
Holding priority, activate Sundial of the Infinite by paying ({1} magic symbol) and tapping it, ending the turn and exiling the Last Chance trigger from the stack.