XIglooX wrote:
In your example if the healer topped the tank off with a shield he would have lived. If the healer hadn't had the tank at max hp in the first place he would have died. If the healer had benediction or lustrate he would have lived. Had the the tank been on a cool down he would have lived. Etc and etc. in your example the tank did not die because he lacked 435 hp but because of mechanics, skill, and reaction. A boss does not hit for less than 735 hp so the only thing you did was prove my point in your post. Of all the controllable things in your scenario having that 435 extra hp at 100% accomplished the least.
MT tank DPS matters in one situation only and that's during progression. Sadly, that is when you are the most undergeared and why VIT trumps damage because of user learning error (both the tank's and the healer's). When content is on farm, this implies your DPS are not dying/meeting the checks and therefore the extra DPS is irrelevant. Farming also implies that the healers are not stressed.
It is not only the healer's job to keep yourself healthy/alive. You do have cooldowns but they will only get you so far. I take it you haven't attempted Nael yet but, as others have mentioned, a raven followed by an auto-attack crit when awareness is down and you have bad cooldowns up is a common situation. Not only this, but you recommend a shield to prevent this. During P1 of T9, you often see the /WHM/ solo healing while the SCH DPSs. This is because healer ACC is low but bio 1 and bio 2 have a 100% hit rate, allowing the SCH to pump out more damage. When solo healing this on WHM, you do not have time to preemptively cast stoneskin.
But let's look closer at shielding. You know that stoneskin is based on the maximum amount of HP you have. The more HP you have, the more effective stoneskin is. The same goes for adloquium (the shield you are referencing) on a WAR vs a PLD. Abilities like spirits within are also buffered more by larger HP amounts. The more HP you have, the closer to 300 potency you get.
Our PLD is sitting at i110 with the HA weapon and shield + pretty much every other HA piece along with many that are BiS. He /still/ gets hit very hard by Nael in all phases. It's more pronounced during Bahamut's favor > Bahamut's claw.
More HP = less likely to run into critical areas = less need to burn through lustrate stacks or use long CDs like benediction = better overall raid health.
But if we were to talk about OT DPS, that's another story. OT DPS (WAR w/o defiance + 30 STR + STR accessories) is very powerful in the right hands. Will it matter? Maybe when you're learning.