Cast Teferi by paying ({4} magic symbol) ({W} magic symbol) ({U} magic symbol) , which enters the battlefield with ten loyalty counters due to Vorinclex.
Activate Teferi's third loyalty ability by removing nine loyalty counters from it, causing you to take an extra turn after this one.
Activate Meticulous Excavation by paying ({2} magic symbol) ({W} magic symbol) , returning Teferi from the battlefield to your hand.