Lately every time I go into battle all I get is my healing cards, booster cards or star cards. I played 6 rounds before I had a real spell card.If I delete the cards from my hand do I get them back sometime during the battle or are they gone because if they are gone it means I end up with no healing and no boosters?
If you discard (right click) a card, then it's completely removed from the battle and won't come back up again. The only way to make it come back is to use Reshuffle, so if you're worried, get some tc's for it, or put in your deck if you already trained it.