Wednesday, April 18, 2012

Staffmods on staves. What's possible and what's not?

I'm not asking about the usefulness or rareness, I just want to know what's possible and what's not.

Fireball/Mastery/Frozen

Fireball/Mastery/Shiver

Fireball/Mastery/Chilling

Fireball/Master/Shield

Blizzard/Mastery/Frozen

Blizzard/Mastery/Shiver

Blizzard/Mastery/Chilling

Blizzard/Mastery/Shield

I know it's impossible for a necro head to have Bone/Spear/Spirit, which suggest that Frozen/Blizzard/Mastery should be impossible, but I don't know if it's the same for staves.

Enlighten me!|||I'm too lazy to look up in which staffmod tiers the skills are, but as a rule of thumb:

Level req difference between two skills:

>18: Impossible

18: Unlikely

12: Uncommon

6: Likely

0: The most common combo

Barb combat masteries don't follow that rule that well BTW because there are so many L1 skills, a few have been put into higher tiers. There's a list of staffmod tiers somehere in this forum. Or was it the SPF? Assassin forum? I don't remember...

Also, the selection of staffmods depends on the ilvl while the affix level also depends on the base qlvl, so things like magical elite staves with L1 staffmods are impossible.

From nightmare on (even a bit earlier, to be presise), L24 skills are the most common staffmods on monster drops or shopped gear, followed be L30 and L18 ones while L12 skills are the least likely. Lower ones are impossible, so if you need items with low-level skills, you will have to farm in normal mode, go shopping there or use cube recipes which produce items with low item levels.|||The base tier* when determining staffmods for an item is determined by the item level, like this:

Ilvl 1-11: Tier 1

Ilvl 12-18: Tier 2

Ilvl 19-24: Tier 3

Ilvl 25-36: Tier 4

Ilvl 37+: Tier 5

(* Tier corresponds to the respective level 1, 6, 12, 18, 24 and 30 skills, for all classes except for Barbarians who have a couple of exceptions)

Then there is a random adjustment made for which tier to actually use when selecting the actual skill:

20% chance to add 1

50% chance to stay unmodified

20% chance to subtract 1

10% chance to subtract 2

(Low quality items have their max tier capped at 4.)



So you can only have a maximum of three steps between the highest and lowest tier. So you can either get level 1-18 skills, level 6-24 skills or level 12-30 skills.|||Thanks for the very fast answers

I can go make my impossible needlist now |||This is basically what the 2 posters above said but put into a schema of probabilities for the various spells/skills.


Code:
+---------------------+-----+------+-----+-------+-------+-------+-------+-------+---------------------+
| | | | | ilvls | ilvls | ilvls | ilvls | ilvls | |
| SORCERESS SPELL | ID | ReqI | Grp | 1-11 | 12-18 | 19-24 | 25-36 | 37-99 | Internal name |
| | | | | | | | | | |
+---------------------+-----+------+-----+-------+-------+-------+-------+-------+---------------------+
| Fire Bolt | 36 | | 1 | 16% | 6% | 2% | | | |
| Warmth | 37 | | 1 | 16% | 6% | 2% | | | |
| Charged Bolt | 38 | | 1 | 16% | 6% | 2% | | | |
| Ice Bolt | 39 | | 1 | 16% | 6% | 2% | | | |
| Frozen Armor | 40 | | 1 | 16% | 6% | 2% | | | |
| - - - - - - - - - - | - - | - - | - - | - - - | - - - | - - - | - - - | - - - | - - - - - - - - - - |
| Inferno | 41 | | 2 | 4% | 10% | 4% | 2% | | |
| Static Field | 42 | | 2 | 4% | 10% | 4% | 2% | | |
| Telekinesis | 43 | | 2 | 4% | 10% | 4% | 2% | | |
| Frost Nova | 44 | | 2 | 4% | 10% | 4% | 2% | | |
| Ice Blast | 45 | | 2 | 4% | 10% | 4% | 2% | | |
| - - - - - - - - - - | - - | - - | - - | - - - | - - - | - - - | - - - | - - - | - - - - - - - - - - |
| Blaze | 46 | | 3 | | 4% | 10% | 4% | 2% | |
| Fire Ball | 47 | | 3 | | 4% | 10% | 4% | 2% | |
| Nova | 48 | | 3 | | 4% | 10% | 4% | 2% | |
| Lightning | 49 | | 3 | | 4% | 10% | 4% | 2% | |
| Shiver Armor | 50 | | 3 | | 4% | 10% | 4% | 2% | |
| - - - - - - - - - - | - - | - - | - - | - - - | - - - | - - - | - - - | - - - | - - - - - - - - - - |
| Fire Wall | 51 | | 4 | | | 4% | 10% | 4% | |
| Enchant | 52 | | 4 | | | 4% | 10% | 4% | |
| Chain Lightning | 53 | | 4 | | | 4% | 10% | 4% | |
| Teleport | 54 | | 4 | | | 4% | 10% | 4% | |
| Glacial Spike | 55 | | 4 | | | 4% | 10% | 4% | |
| - - - - - - - - - - | - - | - - | - - | - - - | - - - | - - - | - - - | - - - | - - - - - - - - - - |
| Meteor | 56 | | 5 | | | | 4% | 10% | |
| Thunder Storm | 57 | | 5 | | | | 4% | 10% | |
| Energy Shield | 58 | | 5 | | | | 4% | 10% | |
| Blizzard | 59 | | 5 | | | | 4% | 10% | |
| Chilling Armor | 60 | | 5 | | | | 4% | 10% | |
| - - - - - - - - - - | - - | - - | - - | - - - | - - - | - - - | - - - | - - - | - - - - - - - - - - |
| Fire Mastery | 61 | | 6 | | | | | 4% | |
| Hydra | 62 | | 6 | | | | | 4% | |
| Lightning Mastery | 63 | | 6 | | | | | 4% | |
| Frozen Orb | 64 | | 6 | | | | | 4% | |
| Cold Mastery | 65 | | 6 | | | | | 4% | |
+---------------------+-----+------+-----+-------+-------+-------+-------+-------+---------------------+

It is worth nothing that the numbers listed are spawning probabilities (any number of affixes with any number of adds) based on the calculations outlined by jiansonz and evenly distributed among tiers. To calculate probabilities for multiple affixes, you should use:

Number of staffmods can be:

a) 3 staffmods 10% chance

b) 2 staffmods 20% chance

c) 1 staffmod 40% chance

d) 0 staffmods 30% chance

Adds to the chosen skill:

a) +3 with 10% chance

b) +2 with 30% chance

c) +1 with 60% chance

in conjunction with the numbers listed in the schema.

Tom|||Quote:








I'm too lazy to look up in which staffmod tiers the skills are, but as a rule of thumb:

Level req difference between two skills:

>18: Impossible

18: Unlikely

12: Uncommon

6: Likely

0: The most common combo




Oh and this could be translated to:

Tier difference of two skills:

>=20: Impossible

15-19: Unlikely

10-14: Uncommon

5-9: Likely

1-4: The most common combo|||Note that there are bonuses for imbues, which make more staffmods more likely (as a function of level) and also make higher bonuses (+3 instead of +1) more likely as well. But the tiers are allocated the same for imbues as for regular drops, shopping, racks and so on.

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