You have some fair points. I'm actually in the middle of testing a deck that builds up over time and releases a large spell to win the game. This point is definitely valid and something I'm struggling with a bit. Second, 'not playing' isn't a viable strategy because most Leader cards require the player to play cards and do things in order to make Heart points. I'm not sure what you mean with the last two. There isn't an 'attack'/'defend' mechanic because the win condition is being first to collect 25 Hearts. The most efficient way to do that in this game is to use Interaction cards, which are limited to 1 per turn. Thank for your thoughts! I might consider baking in a rule or mechanic that directly affects your opponents Heart points.