It's getting difficult for me to increase hit points 😂 I've been playing this game for the past few weeks. Let me tell you my additional tips.
If all of your daily quests are done, saving your points will be better. You can use the points tomorrow. But, in case of the monster HP is low, it would be better to use points.
Today, I got a legendary card. I assume the odds of appearing a legendary card is one-sixth or one-seventh. I hope I'll be within the top 5 this round.