StonePillar and such are actually already in there, with abbreviations like SP, but it was a last minute addition so "PE+++" doesn't work for PhoenixEgg+++, but "PE" does.

I really doubt the square board idea would work, I had something similar in testing but you would end up typing "AirElemental+++" and then the board isn't even uniform, there's just a stupid wide column in the middle. The square idea might work if I got everyone to use abbreviations, but even then there is nonsense of long names ("Pride" vs. "Prince" vs. "Princess").

Overall I think just being able to use the first two letters is a huge improvement, which will work for almost every unit and you don't need a big list of units there. A change I wanted to make was actually an idea I had a long time ago, where minions are marked with the first letter lowercase, so FrostMephit = fM and FrostMage = FM. This still doesn't work for FireMage, which-

Oh wait, I see, you think I custom coded each abbreviation - no, it's actually quite structured, I didn't make that clear I guess. Every unit uses the first two letters of its name, except the ones with two capital letters like EarthElemental and GeminiTwin, which are EE and GT.

The abbreviations I "landed on" wasn't chosen by me at all, it's just the first one in the game's ordering (since Wizard was the first unit, Wi = Wizard and not Wisp). This also means any future units shouldn't conflict here.

Also the code is here if anyone wants to modify it. I'll credit them if they want to make changes. The code is mildly spaghetti and has useless elements.