Some cards refer to the High Score Card or Low Score Card in their abilities. While representing that you are in the lead, having the High Score Card is generally bad news for you. Conversely, owning the Low Score Card generally gives you bonuses to help you come back from being behind.
List of High-Score Units[]
This list includes all cards referring to the High Score Card.
List of Low-Score Units[]
This list includes all cards referring to the Low Score Card.