"A general rule with the new formula is that every doubling of Armor Class pretty much doubles your mitigation. A character with 30 Armor Class will be hit approximately half as often by a specific monster as one with a 15 Armor Class, and one with a 60 Armor Class will be hit approximately one quarter as often as the 15 Armor Class character."
-Eladrin
***FORMULA REVISED*** as I did the math.
If Armor class doubled = Mitigation doubled (from what I will translate into as Miss chance doubled), a theoretical 50% dodge would also double your AC.
MEANING, your dodge % x 2 is added to your AC for your effective AC
(Eg. 10% dodge is +20% more AC than the number showing as your AC)
In LAYMAN TERMS: Double your dodge%, converted to points (instead of %) + your AC = your effective AC
AC 30 + 10% dodge = Effectively the same as an AC 50
Math shows that: +/- 1% depending on rounding rules..
25 AC vs 28 atk bonus = 77% chance of getting hit
25 AC + 12% dodge vs 28 atk bonus = 68% hit chance
30 AC (or 24% higher AC) vs 28 atk bonus = 64% hit chance
70 AC vs 50 Atk Bonus = 43% chance of getting hit
70 AC + 20% dodge vs 50 atk bonus = 34% chance of getting hit
98 AC (or 40% higher AC) vs 28 atk bonus = 31% chance of getting hit
However:
25 AC + 50% dodge vs 28 atk bonus = 38.5% hit chance
50 Ac (or 100% higher AC) vs 28 Atk Bonus = 38.5% hit chance
70 AC + 50% dodge vs 50 atk bonus = 22% hit chance
140 AC (or 100% higher AC) vs 50 atk bonus = 22% hit chance
So my formula is a bit off (but my original theory is correct) but here you can see the power of dodge in increasing your effective AC for those that can.
Anyway if anyone wants to post examples of how high dodge can go now please do. (/thanks Leloric)
Time to play!