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Old February 5, 2008, 12:17   #2
Mondkalb
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Rod of Teleport Other has a high level (45).
Your char has poor magic device ability (which will increase with level and intelligence). To calculate correct chance use the spoiler file:
http://www.juti.nl/hugo/Angband/Spoiler/ability.spo
This is a quote from the above mentioned file:
Quote:
USING A WAND, STAFF, OR ROD
---------------------------

To calculate the base ability of using a wand, staff, or rod, use the
following charts. Begin with the base class ability, then add the race
modifier. To take level into account, add in the product of your
character's experience level and the class bonus per level modifier.
To this add the appropriate intelligence modifier. This gives a numerical
rating of your character's skill at using magic devices.
Code:
              Bonus per
Class    Base Level       Int.         Bonus      Int.         Bonus
-------------------       ------------------      ------------------
Warrior    18   0.7       3-7              0      18/130-18/139   11
Mage       36   1.3       8-14             1      18/140-18/149   12
Priest     30   1.0       15-17            2      18/150-18/159   13
Rogue      32   1.0       18-18/19         3      18/160-18/169   14
Ranger     32   1.0       18/20-18/39      4      18/170-18/179   15
Paladin    24   1.0       18/40-18/59      5      18/180-18/189   16
                          18/60-18/79      6      18/190-18/199   17
Race     Modifier         18/80-18/99      7      18/200-18/209   18
-----------------         18/100-18/109    8      18/210-18/219   19
Human           0         18/110-18/119    9      18/220+         20
Half-Elf        3         18/120-18/129   10
Elf             6
Hobbit         18
Gnome          12
Dwarf           9
Half-Orc       -3
Half-Troll     -8
Dunadan         5
High-Elf       20
To calculate the probability of successfully activating a device, first
divide your character's device skill rating by 2 if your character is
currently confused. Then subtract the level of the wand, staff, or rod
to be activated, with a maximum subtrahend of 50. Call the resulting
number K (which may be negative).

If K is at least 3, then the chance of successfully activating the wand,
staff, or rod is (K-1) in K.

On the other hand, if K is less than 3, the probability of successfully
activating the device is very low yet nonzero; the probability of success
is 2 in 3*(4-K).
This makes:
18-8+(36*0,7)+3=38
Level of rod: 45
K=38-45=-7
Chances are: 2 in 33
So you were still quite unlucky.

Last edited by Mondkalb; February 5, 2008 at 12:26.
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