Reminder on Cities with No City Spell (Empty Essence Slots)
A while back, you guys put the yellow outline reminder on the turn button for idle cities. That was great!
Now, can you do something like that about cities that have essence but no city spells on them? I CONSTANTLY forget about them and miss out on optimal play because of it. The game can check if you have any castable city spells and empty essence slots and show a similar or even same reminder on the turn button.
Thanks.