Thanks so much for playing! And thanks to nomorestories for the shoutout!
1) It does improve "accuracy", ever so slightly. Your attacks aren't perfectly auto aimed, but rather, are aimed in the direction of the arrow your character has around them. But that arrow isn't perfectly snapping to your opponent's position; rather, it's sort of lazily following them. So, if they continue to move, especially when they're close to you, the arrow won't be very accurate. "Focus" makes the arrow snap more closely to the opponent's actual position, and will even slightly "lead" your attacks to where your opponent is moving if held down.
The effect is sort of subtle, so you don't have to worry about it all too much; especially if you're just playing against CPUs. If you're interested, I made a post about it a while back on the devblog: https://maidenspellgame.tumblr.com/post/174673366866/maiden-spell-movement-aimin...
2) Nope! The circles around each character are more of a guide to help you see your opponent out of the corner of your eye, rather than having to look over.
3) Thanks! It's planned for sometime in 2019, but I can't say for certain exactly when quite yet.
4) I've gotten quite a few comments about Hero of Frost's moves, so I'll be changing them a bit in an update. It's supposed to be a trade off between the high power of the Basic Attack versus the improved mobility of the Wide Attack, but I think just about everyone who's sent me feedback so far has mentioned her in one way or another. So that'll be changed.
5) I'll be making "Easy" mode easier in an update, but right now I'm not entirely sure whether I should make "Normal" any easier. A lot of comments have said they feel the game is too hard, but I did a twitter poll and most people who answered thought the game was fairly balanced, so. I might just adjust a few attacks specifically without making it too much easier. I have a feeling the Hero of Frost adjustments will also make the difficulty a bit more manageable.
6) Sure! I think I'll make larger bullets in general stand out a bit more.
Thanks again for playing, and for leaving feedback!