Duplex

Special Effects
Collects points. Adds +2 to its own tile. Does not repeat.

How to get
This card can be purchased from the card shop.

Strategy
Since the Duplex card doesn't repeat, it is most useful when you are in a tough spot to continue. When you only have one tile left in a column, it can be challenging to continue. A duplex is perfect for this spot. Otherwise, it is best to save this card for when you really need it. In general, once you hid the mid-game, this card can be pretty useless. Tenements can surpass the +2 bonus, stacking all the way to +5. It makes more sense to use a Townhouse instead.