I made some coding using the GUI sketch as base. It's coming out well I think. I will probably ask artist to swap the end turn with the summoning icon (the blue thing on bottom-right).
I was thinking that if you click in the button, a vertical column will appear on the right border of the screen with the various creatures you can summon during the battle
So the small card row at the bottom will be eliminated (also because you won't have "cards" but you can summon creatures on the battlefield). I am thinking that a solution to avoid battles dragging too long could be that you need to "build your army" and each unit costs X mana to add to the army.
This way not only you need to have the mana in the battle to summon the creature, avoiding to summon a Bone Dragon (one of the top creatures for Death) at turn 1, but you'll also need to have enough resources when you build up the army.
I'll still have limits depending on the creature rarity: you can have 3 skeleton/zombies, but max 1 bone dragon each "army" (Bone Dragon has 10 attack and 50 HP...
I'm not sure yet how/if I'll allow the big image on the left (the card zoomed in to read the description) or if I just will let player "examine" the card by right clicking on them.
I'm also trying with 5 vs 5 battles, but I might go down to 3 vs 3. Both system have advantages/disadvantages, so need to do some tests. I definitely want to make this game more accessible to everyone
Still brainstorming everything as you see