Overlap the spell
As the beta continues I keep noticing little things that make a huge difference. One such thing will be loved by Paladin tanks, a very simple and minor change to Holy Shield that I never noticed until this week. They changed the timing ever so slightly. This meant that you had to watch it like a hawk to ensure you were not in a global cooldown when it was time to cast it to ensure it was up as close to 100% of the time as possible. The tweaked Holy Shield is now a 10 second spell with an 8 second cooldown. While it does not seem like much, it allows you to overlap the spell and ensure you are never without it. While these only effects Paladins, there are other minor tweaks to almost every class that once seen make so much sense. Mortal online gold is very nice to see Blizzard looking so close at everything in the game rather than just the new items.