Time Spiral uncommon. Normally modern cards don’t use hyphens in card names this way, and in this case the hyphen is even grammatically incorrect. Despite that, the card name was allowed anyway so that it could match exactly with the oracle text of Mishra’s Factory, which can become an Assembly-Worker. Why the hyphen there? So the card doesn’t create separate creature types “Assembly” and “Worker”. (We’re looking at you Hazezon Tamar!)
