Activate Orthion's first ability by paying ({1} magic symbol) ({R} magic symbol) and tapping it, creating a token copy of Su-Chi Cave Guard with haste.
Activate Thermopod's second ability by sacrificing the Su-Chi Cave Guard token, adding ({R} magic symbol) .
When the Su-Chi Cave Guard token dies, it triggers, adding eight ({C} magic symbol) .
Activate Sword of the Paruns by paying ({3} magic symbol) , untapping Orthion.
Repeat.
Optionally, if you have an additional ({R} magic symbol) ({R} magic symbol) available, you may use Orthion's second ability once you have a large amount of ({C} magic symbol) to get infinite ({R} magic symbol) , which can then be used to activate Orthion infinitely targeting any other creature(s).
Results
Infinite colorless mana.
Infinite copies of creatures you control with haste.