Myojin of Cryptic Dreams has at least two indestructible counters on it.
Mana Needed
({2} magic symbol) ({G} magic symbol) available.
Steps
Cast
Spelunking by paying ({2} magic symbol) ({G} magic symbol) .
Holding priority, activate
Myojin of Cryptic Dreams by removing an indestructible counter from it, copying the
Spelunking spell three times.
Resolve the first
Spelunking copy, triggering itself, causing you to put
Oboro from your hand onto the battlefield.
Oboro, Palace in the Clouds enters the battlefield, triggering
Evolution Sage.
In response, activate
Oboro's first ability by tapping it, adding ({U} magic symbol) .
Activate
Oboro's last ability by paying ({1} magic symbol) , returning it from the battlefield to your hand.
Resolve the
Evolution Sage trigger, putting an indestructible counter on
Myojin of Cryptic Dreams.
Repeat from step 3 two additional times.
Repeat from step 2.
Notes
An infinite card draw result has been added to this combo due to Cultivator Colossus or a similar card. This likely limits the other results based on the number of cards in your library.