Great, unique cardgame! The animations really helped telegraph what was going on.
I'd suggest having somewhere on the screen that you could mouse over to see the order the cards play. I found myself having to scroll down to the instructions a couple times. Other than that, everything else was pretty self-explanatory! It feels almost closer to a puzzle game because of how you control both your cards and your opponents.
I think a hint of randomness would go a long way in this! Maybe randomize the order the cards get played, or add some ranges for numbers like 1-3 damage instead of 3 damage.
Nice entry!
- Josh