#0 - Sept. 27, 2007, 9:28 p.m.
People have been throwing around the 200/300 damage for Devastate to exceed the TPS/TPR of Sunder Armor, but what does it actually mean? Specifically, what does the Threat per Rage (TPR) value mean?
Let's work on the basic assumption of the "Holy Rotation" of SS, Rev, Dev, Dev (after 5 sunders, of course). Where rage efficiency comes into play is granting the tanking warrior additional rage to spam Heroic Strike while using the rotation as HS doesn't consume the Global Cool Down. So, in theory, SA will allow more HS to possibly generate more threat than Dev and fewer HS.
Let's look at the numbers and *PLEASE* feel free to tell me if I've made a mistake. This was a thought that came to me and quick numbers were run. There's a good chance I've made some mistakes.
Assumptions:
"Holy Rotation" consumes all GCDs.
Heroic Strike is the only rage dump. (other wars can TClap, Demo, Command, etc.)
Mid-level Kara tank (KD/TSE/1.6s, ~800AP)
40% damage reduction by mob armor
http://www.new-swankton.net/files/hs_vs_dev.xls for basic calculations (nb. spreadsheet doesn't have damage reduction)
Fully talented for rage reduction (SA, HS, FR)
Numbers:
White Damage rage: 4.65 rage
Sunder Armor: 301 bthreat, 0 damage, 9 rage
Heroic Strike: 193 bthreat, 176 * 0.6 = 105 damage, 9 + 4.65 = 13.65 rage
For the additional 3 rage from SA over Dev you'll factor a percentage of HS as it is the only rage soak.
(3/13.65)*(193 bthreat) + (3/13.65)*(105 damage) = 42.4 bthreat + 23.1 damage = 65.5 threat
Using Sunder Armor plus a fraction of Heroic Strike yields 366.5 total threat for 12 rage.
This would yield a final value of 265.5 damage needed from Devastate to overcome Sunder Armor plus additional Heroic Strikes.
