Deckfall

I’m enjoying the concept, the risk/reward aspect is very cool. I’m confused about the weapons though; the “How to play” says that weapons can be used on an enemy of equal or lower value. However, there have been times where I’ve got - for example - a 9 weapon equipped and still take damage fighting a 4 value enemy. Do weapons only last for one attack or something? Not sure. Will have to play around with it some more.