Slitherine

I seem to have forgotten how to use the BattleCards when fighting on the battlefield. I didn't find the answer in the manual. I also can't remember it from the tutorial. Can someone tell me how it's done?
Thanks, and BTW, I love this game!

You need to pause, then click on the card and then right click to place it on the map. Note that depending on the effect, you may only be able to place them on your own or the enemy (or both) troops.

Cheers

Pip