I did the Extra Life event in the weekend and finally created my own 5-cleric team. I got level 20 in the 24 hours. A lot of AFK, walking around and trying to wake up. :) I was too tired to set up the tank and healer macros so I didn't do much dungeons. I did the first two bosses in IT at 20 and it was extremely easy though I'm not sure how to manage mana on the tank yet.
Purpose didn't seem to do anything (tried just spamming Strike of Judgment)... While Purpose is on, do all melee strikes use 0 mana? Or does it matter which melee strike I use to try to regain mana (meaning I use should use low-cost strikes rather than high-cost strikes)?
Videos from that first IT attempt is uploaded at
http://boxofchocolate.smedis.com.