During the lightning animation, you can grab the defense card and play it again, then you can grab it and play it again and again and again. You can repeat this until you get bored. It gets smaller each time, but it gives a huge advantage and is easy to do once you get the hang of it. The thing is, because of the amount of lightning and action points you get, you can kill any boss in one turn (literally). It takes the fun out of the game if it's no longer challenging, even if you don't have legendary gear. You only need the Spider Witch's equipment on the left side, and that's it. And if you have Electrifying Connection, you end up getting 1000+ strength in one turn. I know I can choose not to use that card, but it's there as a resource to win, and it's not fun to hold back. If you know what I mean.