Would be awesome if there was a mass Invulnerability spell, even if it was only castable outside of combat. Not saying it's hard to invul all your characters, but with a team of Giants and Elves it does get a little old having to move everyone out of the way.
Also follow has never worked 100% correctly. You can never rely on it since one of the characters always gets stuck on the previous screen. So Everytime you join a group you have to turn off follow, and if you leave the group and rejoin or someone else joins, you have to turn it off again. Be better if follow never automatically turned on.