You control up to seven lands that can tap to produce at least ({4} magic symbol) ({B} magic symbol) .
Steps
Activate up to seven lands you control by tapping them, adding at least ({4} magic symbol) ({B} magic symbol) .
Cast Imps' Taunt with buyback by paying ({4} magic symbol) ({B} magic symbol) , targeting Palinchron.
Orvar's first ability triggers, creating a token copy of Palinchron.
When the Palinchron token enters the battlefield, it triggers, untapping up to seven lands.
Resolve Imps' Taunt, returning it to your hand.
Repeat.
If you control up to seven lands that can tap to produce at least ({5} magic symbol) ({B} magic symbol) , this combo nets infinite mana, which you can then target any creatures you control in step 2 to create infinite token copies of them.