Well, you're guide is a little bit authoritative. It's like "Do this and nothing else". Not everyone has the fortune of finding good END gears whether to buy, or in drops (I'm reminded of a poor cleric called Vasu at this point ;D). I'm pure END, I party a lot, I love my cleric. I also use a mace. At lvl 20, I chose a hammer, and missed 1 out of 7 hits, it got a bit tiresome. I switched to the mace. Sure, the dmg was lower, but atleast I don't get that hollow feeling every time I miss a bash. Also, you're assumption, that Heal, when used properly won't pull aggro, you're wrong. I was in an AoE party in abyss once, and even after the fighter Mocked once, and Deva'd once, I was able to pull all the mobs except the single one he was attacking (I used Reju once, and Heal once), and there was even a mage spamming Magic Burst. That's where my high HP and auto-dmg cancelling END def was of huge help. I also blocked loads of hits. Sure, a blue shield with 8% block rate is plenty, but add another 5.2% to it, and it gets even better.