Reflection of Kiki-Jiki does not have summoning sickness.
({1} magic symbol) ({R} magic symbol) ({R} magic symbol) on your first turn, with ({2} magic symbol) ({R} magic symbol) ({R} magic symbol) available on all subsequent turns available.
Steps
Cast Last Chance by paying ({R} magic symbol) ({R} magic symbol) , causing you to take an extra turn after this one.
Activate Reflection of Kiki-Jiki by paying ({1} magic symbol) and tapping it, creating a token copy of Ardent Elementalist.
The Ardent Elementalist token enters the battlefield, returning Last Chance from your graveyard to your hand.
At the beginning of each extra turn's end step, Last Chance triggers.
Holding priority, activate Sundial of the Infinite by paying ({1} magic symbol) and tapping it, ending the turn.