You should always have a spell potion activated to increase your cast speed

Another situation: PLAYER5 is a DM (dark mage) and has taken a hit or two. What do you buy the sims 3 simpoints do?

Unless someone else is on the verge of death, stand, lvl5 rapid heal them ASAP. Always rapid heal DMs. Why? They have severely low defense and HP.

Ideally, they shouldn't take aggro at all... they need to learn not to for their own survival. But if they do, you need to rapid heal them ASAP. If they don't cease attacking when they have aggro, yell at them, of course.

Healing DMs is the #1 sink for a healer's MP, because almost any other kind of character can wait for you to cast a normal heal.

Again, as I said in the MP Conservation section, you should always be seated unless you're actively healing in that moment. Likewise, you should always have a spell potion activated to increase your cast speed.

If you want, tell people that you'll donate less force chips to a party because you keep those active. Buy them from the store or the deluxe spell potions from other players.

Of course, this is only true if your heal spell is recharged. You can press 'rapid heal' instead if you can't wait for your heal spell.