**The short answer: 87 Power, 153 Endurance**The quantity to be maximized here is the "total boost factor": damage multiplier times the vitality multiplier. Pre-update, before power/endurance got hit by the nerf hammer, each increased their respective multiplier by 0.5% per point; post-update, each point in endurance increases vitality by 0.3%, while each point in power increases damage by 0.25%.

(Freshman-level calculus ahead; math-phobes be warned)

**Pre-Update, at level 50:**I'll do the calculation for pre-update first just as an illustration, since the numbers are slightly easier to work with. Let F = boost factor, D = damage multiplier, V = vitality multiplier; let x = # points to put in power, y = # of points to put in endurance.

We are trying to maximize F = DV = (1 + 0.005x)(1 + 005y), where x + y = 200.

Substituting y = 200 - x, we have

F = (1 + 0.005x)(1 + 0.005(200-x)) = 2 + 0.005x - 0.000025x^2

F' = dF/dx = 0.005 - 0.00005x, F' = 0 when x = 100 (the only critical point)

The domain for x is [0, 200]; plugging in the two endpoints x = 0, x = 200 both give F = 2, as expected (meaning, you either get double damage or double vitality). At the critical point x = 100, we get F = 1.5 * 1.5 = 2.25, which is our maximum.

**Post-Update, at level 60:**Now the numbers get a little more messy, but the setup is the same as before.

We want to maximize F = DV = (1 + 0.0025x)(1 + 0.003y), where x + y = 240. Again we substitute y = 240 - x, so that the problem becomes maximization over a single variable, x.

Solving this by setting F' = 0, we get x = 260/3 as the only critical point; at this point, F = 5329/3000, which is 1.77633333... Now, skill points only come as integers, so we'll have to settle for x = 87 (as 260/3 ~= 86.7). For x = 87, we have y = 153 and F = 1.7763325. Note that a 200-power, 40-endurance build yields F = 1.5 * 1.12 = 1.68, while a 40-power, 200-endurance build yields F = 1.1 * 1.6 = 1.76. Interestingly, the statistically optimal build is only very marginally (less than 1%) better than a 40-power, 200-endurance build.

NOTE: this is for putting 0 points in Vigor, which is not clearly understood at this point and someone over at TekkenZaibatsu did some extensive testing of the stats and found vigor to be pretty useless, his results are posted in one of the stickied threads in the TR forum on TZ.