In response, cast Dualcaster Mage by paying ({1} magic symbol) ({R} magic symbol) ({R} magic symbol) .
When Dualcaster Mage enters the battlefield, it triggers, copying Molten Duplication and changing the target to Dualcaster Mage.
Resolve a Molten Duplication copy, creating an artifact creature token copy of Dualcaster Mage with haste that will be sacrificed at the next end step.