Well, that's good to know... (my own game changing moments)
1. There's a difference between carbuncles. 2. Barriers will erect in dungeons. 3. You can heal other players if you target them. 4. Durability matters. 5. It's an "enmity" list, not an "enemy" list. Actually, it is called "enemy" list, but you can see your aggro. 6. Alternate cross bars is a thing. 7. Favored destinations make the teleport cheaper.