Hey,
This comment is very late (sorry about that - I haven't been on this account in a long time), but I appreciate you taking time to play my game.
About your previous comment: Focus mostly depends on whatever the enemy's Evade stat is. If the player has less focus than the enemy has evade, their attacks will always miss, but if the player has more focus than the enemy has evade, they get a damage boost (the same goes for enemies, too).
I like the suggestions you have for the game, especially the option to upgrade skills.