There are cards higher value than yellow ! You have to find the right cards in some of the chests (hint : there are 3 precious geme stone one for each type of cards. Also something to be done with the rhum haha)
You can save one card in the fusion zone for next turn, but you will only be able to draw 4 cards.
I have to think about letting the fight start with more card from a gameplay perspective, maybe I'll try it if I keep working on this game
Glad you liked it !