It took me a while to realize how to properly interact with the cards since clicking on them wasn't working. I didn't realize I was meant to drag them slightly upward until midway through. At that point, I'd pretty much ran past everything, which was a fun type of strategy in and of itself. I did accidentally completely blow up one of my mechs with a rocket when I figured out how the cards work though!
It does feel like a rough concept, but I like the overall feel and the gameplay ideas work well! It definitely does remind me of Worms, which is always a great franchise to harken back to.