Spell Point / Damage Ratio Guide

[ForwardWu]

Objective:

How to deal the most damage with limited spell point pool? What is the best damage/sp ratio in ddo spells? This guide aims to answer the above question. Focus will be placed on damaging a single target, and a set of damage spells will be selected for comparison.

7 Ratio of Damage / SP for each spell is represented: Base, Emp, Max, Emp + Max, and Reduced SP Cost of Emp, Max, Emp + Max

Base - Base Damage
Emp - Empower On, extra 15 sp
Max - Maximize On, extra 25 sp
Both - Empower and Maximize On, extra 40sp
Reduced Sp Cost of Emp - Empower On, extra 7 sp
Reduced Sp Cost of Max - Max On, extra 12 sp
Reduced SP for Both - Both On, extra 21 sp

Results:

Spell / Base /Emp / Max / Both / Re-Emp / Re-Max / Re-Both
Magic Missile / 5.35 /3.31 /3.19 /2.78 /4.87 /5.07 /4.78
Scorching Ray / 9.90 /7.45 /7.46 /6.80 /10.16 /11.06 /10.99
Force Missile / 4.70 /4.46 /4.76 /4.58 /5.57 /6.44 /6.77

[ForwardWu]

The following is the detail of the analysis method:

Damage calculation is based on the following formula

(base damage) * (1+enhancement% + potency%) * (critical factor) * (metamagic factor), round down to nearest integer

Base Damage is found by experimentation with no potency and no enhancement

1 + enhancement + potency is assumed as 1.9

Critical factor is assumed as 2.75

Metamagic factor for Emp, Max and Both are 1.5, 2 and 2.5

For each spell, each possible outcome from die roll will apply the above formula to find out the weighted damage for non-critical/critical

then damage of die number will be averaged, assuming all die roll has the average at the center

For sp cost reduction,
Emp : -6 from enhancement, -2 from ring of thelis
MAx : -9 from enhancement, -4 from glove of glacier


Die Roll for spells:
Magic Missile : 5 x ( 1d2 + 3 )
Scorching Ray : 3 x ( 4d3 + 12 )
Force Missile : 4 x ( 2d4 + 8 )

[ForwardWu]

Reference:

Spell Magic Missile
Spell Point Cost 10
Emp Cost Reduction 8
Max Cost Reduction 13
Multiple Shoot 5
Potency 1.9
Critical Chance 0.18
Critical Multiply 2.75

Die Roll Damage Damage / Spell Cost Reduced Cost
Base Powerup Critical Weighted Base Emp Max Max + Emp Base Emp Max Max + Emp Emp Max Max + Emp
4 7.60 20.90 9.34 46.70 73.00 98.40 124.70 4.67 2.92 2.81 2.49 4.29 4.47 4.30
5 9.50 26.13 12.06 60.30 92.50 124.70 152.80 6.03 3.70 3.56 3.06 5.44 5.67 5.27





Average 5.35 3.31 3.19 2.78 4.87 5.07 4.78



Spell Scorching Ray
Spell Point Cost 15
Emp Cost Reduction 8
Max Cost Reduction 13
Multiple Shoot 3
Potency 1.9
Critical Chance 0.18
Critical Multiply 2.75

Die Roll Damage Damage / Spell Cost Reduced Cost
Base Powerup Critical Weighted Base Emp Max Max + Emp Base Emp Max Max + Emp Emp Max Max + Emp
16 30.40 83.60 39.54 118.62 178.20 237.78 299.82 7.91 5.94 5.94 5.45 8.10 8.81 8.82
17 32.30 88.83 42.08 126.24 189.90 253.02 316.68 8.42 6.33 6.33 5.76 8.63 9.37 9.31
18 34.20 94.05 44.80 134.40 201.60 268.80 336.00 8.96 6.72 6.72 6.11 9.16 9.96 9.88
19 36.10 99.28 47.34 142.02 212.76 284.04 355.32 9.47 7.09 7.10 6.46 9.67 10.52 10.45
20 38.00 104.50 49.88 149.64 224.46 299.82 374.64 9.98 7.48 7.50 6.81 10.20 11.10 11.02
21 39.90 109.73 51.60 154.80 233.70 312.60 391.50 10.32 7.79 7.82 7.12 10.62 11.58 11.51
22 41.80 114.95 54.14 162.42 245.40 327.84 410.82 10.83 8.18 8.20 7.47 11.15 12.14 12.08
23 43.70 120.18 56.86 170.58 257.10 343.62 430.14 11.37 8.57 8.59 7.82 11.69 12.73 12.65
24 45.60 125.40 59.40 178.20 268.80 358.86 449.46 11.88 8.96 8.97 8.17 12.22 13.29 13.22

Average 9.90 7.45 7.46 6.80 10.16 11.06 10.99



Spell Force Missie
Spell Point Cost 25
Emp Cost Reduction 8
Max Cost Reduction 13
Multiple Shoot 4
Potency 1.9
Critical Chance 0.18
Critical Multiply 2.75

Die Roll Damage Damage / Spell Cost Reduced Cost
Base Powerup Critical Weighted Base Emp Max Max + Emp Base Emp Max Max + Emp Emp Max Max + Emp
10 19.00 52.25 24.94 99.76 148.00 199.52 247.76 3.99 3.70 3.99 3.81 4.63 5.39 5.63
11 20.90 57.48 26.66 106.64 163.60 216.56 273.52 4.27 4.09 4.33 4.21 5.11 5.85 6.22
12 22.80 62.70 29.20 116.80 179.20 237.60 299.28 4.67 4.48 4.75 4.60 5.60 6.42 6.80
13 24.70 67.93 31.74 126.96 194.08 257.92 321.76 5.08 4.85 5.16 4.95 6.07 6.97 7.31
14 26.60 73.15 34.46 137.84 206.40 278.96 347.52 5.51 5.16 5.58 5.35 6.45 7.54 7.90

Average 4.70 4.46 4.76 4.58 5.57 6.44 6.77

[ForwardWu]

Reserved..

[ddoer]

thanks for the guide. I made a similar table at:
http://www.ddoer.com/guide/spell/efficiency

In my table, i used the highest damage rather than average as the base damage. e.g. for MM, it's 5 x (1d4+1) = 25. for your average, do you actually refer to the mean? i.e. 12.5 for MM.

Indeed, SP Efficiency is not really a concern to me except in solo cases.

do you have any comment?