by tppytel
mvkwasny wrote:
I think sideways cards are for the player's actions only.
You can't play a unit sideways itself, but a unit's effect is otherwise identical to a card*, and it can be played alongside any other cards as usual. So if you've got a unit that does an Attack 3 and you've got some other dead card in hand, you play the unit for Attack 3 and the dead card sideways for Attack 1, getting you a total of Attack 4.
* I believe the only exception to "a unit action is just like a card" is that a unit action can't be boosted by Ambush, per the unofficial FAQ.