Hotkeys would be a great addition to the combat system. Something like 1, 2, etc for knights, QWE for Arcana. Being able to Q + 1 instead of clicking to heal would make combat a little smoother, I think.
Zoom in/out on map editor would be nice. Or just everywhere in general.
Also, mayhaps a damage recap at the end of each turn (ie, "Tau did XX damage to an enemy" rather than "Tau damaged an enemy")
Also, it seems that the clicking mechanism is a little unresponsive. It might just be because I'm using a touchpad, but there seems to be some interference when I try to summon units, particularly when I've just summoned some to the same row, as well as when there are a lot of units in the way of the cursor.
How about a method to rearrange you units on top bar without having to sell them? I'd like to move my laddermen off of the first position (it screws me up when I go between field battles vs sieges)
Could we get more tooltips, or perhaps some "encylcopedia" menu? I'd like to better understand that stats/which classes benefit most from certain builds. A bestiary might also be a nice touch.
Useful exploit: When you use an ability, click the enemy immediately afterward. If timed properly, you'll execute the same ability twice in a row.
Also, just some areas of improvement...when I try to put a space in my pet's name (in my case, "Big Red") the game doesn't recognize capitalization in the second word ("Big red"). I'd also like to see a hotkey system for abilities (haven't played Castaway 2 yet, so idk if you've done this already).
Gold Angel can be beaten by your own Angel titan...you just need to set it up so yours attacks about a second before the enemy does. You'll hit the enemy, but the enemy won't hit you. Just go afk after a while, or stay and throw meteors to speed things along.