using card 2 (costs 7) is pretty much better than all other cards, you just shoot until the enemies are too close and use the card.
you can also use this strategy to summon the 30 souls card, and from that you can either mix that card with card 2 whenever necessary, or you can summon two of that 30 soul card and be pretty much invincible.
I reached a score of 500 I think (probably more), and only lost cuz I was trying to see what the other cards did and if any of them were potentially better than the ones I was using (spoiler alert: they weren't lol)