MIU formula

[Matt-Ichiban]

I was wondering if anyone knows the forumla for wand activation and other magic items that use MIU.

[Ebondale]

Not exactly sure of the formula itself but Tsoran's Trainer has a calculator built into it, if I'm not mistaken.

[Matt-Ichiban]

Oh great. I'll check that out.

[Jolena]

I've always used a rule of thumb of 3 ranks above the spell # you are wanting to activate. It's worked rather well for me so far with my training in MIU. I have 25 ranks of MIU and can use about any spell I really have a use for.

[Ebondale]

Is there a point in training MIU to say, 100?

[Jolena]

Not if you only plan to use it for activating Magic items. I got my ranks because of 2 reasons.

1) Using magic items obviously

2) it's a cheap way for a rogue to gain magic ranks for use in OTF etc.

[Ebondale]

All right, this may be a newb question but what is 'OTF'? :) I don't recall hearing that acronym before I quit.

Do you think there is a point to training to a VERY high number of MIU if, for example, I am a sorcerer who trains 2x in spell aiming? (Meaning, at what point will I really not need any more MIU to use wizard spells?)

[Matt-Ichiban]

Well I was just curious because my wizard is 7 with 18 ranks in MIU and has a 45 modifier for activating a slender blue wand. My modifier for crystal wands isn't much better than that either. I'm trying to figure out what could be doing it.

[Jolena]

I believe I was told at one point when asking about max ranks of Miu/Arcane Symbols for my empath that I should stop at 36. Its late and my brain isn't functioning the way it should so i can't remember why. heh!

As to OTF, it's an acronym for Old Ta'Faendryl. You're allowed to keep spells on you based on the # of magical ranks you have. Scroll use and MIU are the cheapest routes to go for rogues in that respect. I also have 27 ranks of Arcane Symbols and plan to stop at 30 as there are still scrolls I can't use that I want to. :)

[Jolena]

errm..dude, no reason for a wizard to be going over double in MIU. Seriously. Its a waste of points to do so. Mine have never gone over 1.5 to be honest however I just can't see going over 2x at all for any profession. My opinion only though.

[Ebondale]

Originally posted by Jolena
I believe I was told at one point when asking about max ranks of Miu/Arcane Symbols for my empath that I should stop at 36. Its late and my brain isn't functioning the way it should so i can't remember why. heh!

As to OTF, it's an acronym for Old Ta'Faendryl. You're allowed to keep spells on you based on the # of magical ranks you have. Scroll use and MIU are the cheapest routes to go for rogues in that respect. I also have 27 ranks of Arcane Symbols and plan to stop at 30 as there are still scrolls I can't use that I want to. :)

I'm sure I'll be going way over 27 in arcane symbols being a sorceror and all. :) Maybe I should stop around 35ish with MIU? Decisions, decisions...

[Latrinsorm]

MIU formula:

(skill) - (level * 5) + (stat mod) + (knowledge bonus) - (armor penalty) - (encumbrance) + d100 = x
if x > 100, invoke successful

Stat mods are different for every circle. Knowledge bonus I don't remember exactly, but it's something like 40 if you know it, 20 if it's in your sphere (elemental/spiritual/mental?). Armor penalty and encumbrance don't apply if you're trained for your armor and anything less than hugely encumbered, from what I remember. Rangers get a +20 bonus for using items they've imbued.

Then the activator factors in too. Raise is the hardest, I think tap is the easiest, and rub is no bonus or penalty. For spells that have durations, you get longer durations for raise and shorter for tap.

I'm pretty sure it's skill and not ranks, so lower level spells require much less investment to cast regularly.

[isebumples]

MIU for a sorc, if you are going the runestaff route, is a very cheap way of getting extra DS. Every rank helps, and those ranks are extremely cheap. If you don't use a twig, no real reason to have it way trained up. Also, i'm pretty sure for wizards, it factors into enchanting pours.

[Askip]

<< Well I was just curious because my wizard is 7 with 18 ranks in MIU and has a 45 modifier for activating a slender blue wand. My modifier for crystal wands isn't much better than that either. I'm trying to figure out what could be doing it. >>

I believe you need more MIU ranks than the spell level, and those wands are level 27-28ish. Also, there is a negative modifier if the wand has a spell you cannot learn.

:D

[Edited on 6-18-2005 by Askip]

[Syberus]

There IS a reason for Sorcerers to have MIU. Defense for your staff (as was mentioned) MIU ranks act as spell ranks for determining duration of imbedded items (Arcane symbols does this for scrolls invoked). And I'm fairly certain MIU plays a roll with scroll infusion.

[Meges]

Duration is reason enough:

http://www.play.net/gs4/info/magic-guide.asp

"MIU duration formula:
base duration + (MIU ranks * (half normal duration for spell ranks known))

When using the TAP command to activate a magic item, MIU ranks are halved.
When using the RUB & WAVE commands, use the normal MIU ranks.
When using the RAISE command, MIU ranks are 133% normal.

Example:

The spell Thurfel's Ward (503) spell duration formula is 1200 seconds +60 seconds for every Major Elemental spell known. Your character has 50 MIU ranks. What is the spell duration for the activation commands?

TAP: 1200 + (25 * 30) = 1950 seconds
RUB & WAVE: 1200 + (50 * 30) = 2700 seconds
RAISE: 1200 + (66 * 30) = 3180 seconds

When using the DRINK & EAT commands to activate a magic item, only the base spell duration is calculated. In the case of the Thurfel's Ward spell, it would be 1200 seconds."


Meges

[Matt-Ichiban]

Thanks a lot for all the info. While I was playing around with Tsoran's trainer I pushed the spell level in a wand to 26 or 27 and the modifier was correct for a slender blue wand. Again, thanks very much for everyone's imput.

[Fengus]

Brace yourself (and this is all the work of Porcell, who I am not):

Base formula (modifier):

(LO+IN) + (stat modifier) + MIU skill + (alignment bonus) + (knowledge bonus) - (spell level x 5) - (armor/encumbrance) + Activation modifier = modifier

If modifier +d100 >100, then the item is successfully activated

Stat modifier differs for each spell circle, and all numbers ROUND DOWN

100 - WI
200 = WI/2 (ROUND DOWN)
300 = WI/2 (ROUND DOWN)
400 = AU
500 = AU/2 (ROUND DOWN)
600 = WI
700 =(WI+AU)/4 (ROUND DOWN)
800 = (LO+IN)
900 = AU/2 (ROUND DOWN)
1000 = (LO+IN)

Alignment bonus is as follows:

+40 if you have access to spell circle
+20 If you don't have access, but circle is within your spiritual/elemental sphere
+0 if the spell is from the opposite sphere

Notes:
1) Warriors and rogues are considered not be aligned with either sphere; they get +40 for both minor circles and +0 for all others
2) Sorcerers are considered aligned with both spheres. They get +40 for circles they have access to and +20 for all other circles

Spell knowledge bonus

+20 if you have learned the spell yourself (even if you're too young to actually cast it)
+20 if you are a ranger using your own imbued magic item (just kind of stuffed this here...)

Armor/encumbrance penalty

I haven't worked out specific armor penalty. If you are trained for your armor (RT*20-10 skill) then there is no penalty, but there is penalty if you are undertrained. For encumberance, you receive 5 points of penalty for every 1 second of swing RT you are encumbered. For example, if unencumbered you swing a greatsword in 7 seconds, and then encumbered you swing it in 9 seconds, you would have around 10 points of penalty to your MIU Modifier. Encumberance and Armor penalties do NOT apply when using a tap or rub item.

Activation Modifier

I do not know specifically, but I have rough numbers on this. If you invoke with tap you get around a +50 bonus to your modifier. Rub gives you around 20-25 bonus. Wave gives no bonus at all, and raise gives you a penalty of around 20-30.

Durations:

Here are the durations of the various activation methods:

Wave/Rub: (Base Duration) + (MIU Ranks/2) * (Variable Spell Rank Duration)
Tap: (Base Duration) + (MIU Ranks/2)/2 * (Variable Spell Rank Duration)
Raise: (Base Duration) + (MIU Ranks/2)*1.5 * (Variable Spell Rank Duration)

[Janarth]

Any spell where duration is based on spell ranks in that circle, is translated into ranks MIU. So, frankly, the more MIU you have, the more mileage you will get from your imbeddibles. Sure, 20 ranks might be enough to activate that uber wizard imbeddible with 507, but the spell will only last five minutes :p With a bunch of MIU, it might last 40. I guess it depends on what typa stuff yer rubbing.