This has potential, perhaps it's better if ingame it is explained as you go.
HOW TO PLAY:
Every turn there are two phases. Before starting.
In the first phase both players choose a card to play from the six available. You then play the card you've chosen, followed by your opponent.
In the second phase, you and your opponent each choose up to 3 cards of the same six, that cannot be played for the rest of the turn. After that, both players randomly play a card from the cards not picked in the phase.
Benevolence and Lightning are a common resource that both players can use and increase throughout the game. If it is increased enough, it can help deal a lot of damage or restore a lot of health! Cards that deal double damage or restore double health empty the respective resource.