1. Single target has been mentioned (I use ruin 2 as I only run out of mp with succor/res spam). In large pulls, shadow flare>miasma 2>cleric off. Healing, adlo>physick>adlo on tank for heavy damage and let the fairy heal the dps. Light damage is 100% fairy.

2. No coil/ex primals, but right now I use Selene in 8 mans if there is another scholar with eos. I use CDs/whispering dawn while in cleric, and manual heals if I want to heal someone up who is above 80% HP, to prioritize another target, or when healing an out of party tank in fates.

3. Must? None. I have one to swap hotbars for cleric and one to summon fairy in obey with their skills on my hotbars.

4. If I'm feeling nice, I will move closer. If they are really far off, I will ignore them and run out to res later if needed. If your HP drops as a dps, you should run to your healer.

5. It takes me awhile to learn things, so in a battle, I'll just try to leech it off then remember if it actually worked or not.