ITD question

[kanga_jay]

ITD question

Quick question peeps...

With ITD items, am I right in thinking it's doesn't matter how much (low) your AR is; you'll still hit the target 95% of the time?

Actually two questions..

Does ITD work on act bosses?

Thanks

P.S
If you don't understand the first Q, i'll go into a little more detail... :scratch:

 

[Chaldan]

ITD sets the defense of the monster to 0, so the only thing that matters when calculating to-hit is your level and the monsters level.

ITD does not work on act bosses

 

[Loboleal]

With ITD items, am I right in thinking it's doesn't matter how much (low) your AR is; you'll still hit the target 95% of the time?

It depends on attacker's level and defender's level.
Chance to hit formula is this:
CTH = 100*AR / (AR+DR) * 2*AL / (AL+DL)

AR = Attacker's Attack Rating
DR = Defender's Defense Rating
AL = Attacker's Level
DL = Defender's Level

With ITD: DR = 0. Objective: 95% CTH

95 = 100*AR / (AR+0) * 2*AL / (AL+DL)
95 = 200*AL / (AL+DL)
... after some calculation ...
105/95 * AL = DL
so if AL is not smaller than 0.9 times DL, your CTH will be 95% no matter how low were your AR.

Does ITD work on act bosses?

No, it doesn't work on Act Bosses and Superuniques.

 

[Kitriara]

As far as I know, however, ETH runes do work on bosses. So theoretically you could socket a weapon with 4 ETH runes which is -100% defense... there you go, boss ITD.

 

[RTB]

Except that -% defense is halved against bosses and players. You'd need 8 Eths to get ITD against bosses.

ITD doesn't work against champions and unique monsters either.