You have sacrificed a number of artifacts and/or creatures this turn equal to the number of times you've cast Dargo from the command zone this game minus four.
When Ruthless Technomancer enters the battlefield, it triggers, causing you to sacrifice Dargo and create seven Treasure artifact tokens.
Choose to return Dargo to the command zone from your graveyard.
Activate three Treasure tokens by tapping and sacrificing them, adding ({U} magic symbol) ({U} magic symbol) ({R} magic symbol) .
Cast Quasiduplicate by paying ({1} magic symbol) ({U} magic symbol) ({U} magic symbol) , creating a token copy of Ruthless Technomancer.
When the Ruthless Technomancer token enters the battlefield, it triggers, causing you to sacrifice Ruthless Technomancer and create two Treasure artifact tokens.
Cast Dargo from the command zone by paying ({R} magic symbol) .
Activate four Treasures by tapping and sacrificing them, adding ({2} magic symbol) ({B} magic symbol) ({R} magic symbol) .
Activate the Ruthless Technomancer token by paying ({2} magic symbol) ({B} magic symbol) and sacrificing two Treasures, returning the nontoken Ruthless Technomancer from your graveyard to the battlefield.
When the nontoken Ruthless Technomancer enters the battlefield, it triggers, causing you to sacrifice Dargo and create seven Treasure artifact tokens.
Choose to return Dargo to the command zone from your graveyard.
Cast Dargo by paying ({R} magic symbol) and sacrificing Ruthless Technomancer.