Bloodspore Thrinax has at least five +1/+1 counters on it.Reflection of Kiki-Jiki does not have summoning sickness.
({1} magic symbol) each turn available.
Steps
Activate Reflection of Kiki-Jiki by paying ({1} magic symbol) and tapping it, creating a token copy of Sage of Hours that enters the battlefield with at least five +1/+1 counters due to Bloodspore Thrinax.
Activate the Sage of Hours token by removing all +1/+1 counters from it, causing you to take at least one extra turn after this one.