Hi, the Terrors of the track are bugged because if you try to cast a clone creature on them like mirror image, if you cast it after the double team's trigger, the clone enters with the perpetual effect (so it loses already double team), while other similar clone cards work differently, such as "glasspool mimic"; this one for example enters without the perpetual effect BUT only if you cast it for the first time one the same target, which doesn't make any sense. Technically when a creature enters as a nontoken copy it should ALWAYS consider the original card or somethig like that. Thank you.