Difference between revisions of "Wand of cancellation"

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(Identification: cleanup)
(Strategy: Shorten section; reduce bias of "live with the risk")
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==Strategy==
 
==Strategy==
Always pick up a wand of cancellation, keep them cherish them. A part of playing nethack is forming good habits, and having that added danger of a potential game ending boner lying in your inventory is a great way to force yourself to pause and read the text before blindly mashing some key.
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A large part of surviving Nethack is forming good habits. Never pick up a wand of cancellation unless you need it, even if you do not (yet) have a [[bag of holding]]. Destroying the contents of your [[bag of holding]] can be a game-ending mistake. In vanilla, it is safe to leave it since no monster can use cancellation.
  
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Of course, the best tip is to read all the text and make sure you understand what you are doing at all times. If you keep making simple mistakes such as placing a wand of cancellation in your bag of holding, then slow down. However, even attentive players face a slight chance of accident, and in a long game, probabilites do add up.
  
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Some people [[adjust|assign]] a special "danger" inventory capital letter to this "rod of disaster" (or the sack it is in). You could reduce the chance of blowing up your bag of holding by embedding the wand into multiple sacks, 7 are optimum.
  
Why should I keep a such a potential disaster in my inventory?  Everything you need to know about why you should keep a wand of cancellation on you at all times is in this [http://nethack.wikia.com/index.php?title=http%3A%2F%2Fnethack.wikia.com%2Fwiki%2FCancellation&action=edit&redlink=1 article].
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On the other hand, this wand is great to (emergency) uncurse worn stuff - just drop/bag everything else first.
  
 
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There exists also the opposite school of thought: Always pick up a wand of cancellation, it allegedly is a great way to force yourself to pause and read the text before blindly mashing some key. This is the Nethack equivalent of placing a bomb in every car: Hopefully, people will drive more carefully, reducing total casualities. For unimaginable reasons, this scheme hasn't caught on in the Real World.
 
 
While carrying said "rod of disaster", let us take some time to make sure you understand potential blunders that you can make and possible ways to minimize the dangers.
 
 
 
 
 
 
 
First, understand how to identify a wand of cancellation.
 
 
 
 
 
 
 
Second, if you do not have a positive identification for the wand of cancellation, treat all wands as if they were a wand of cancellation, once you have the wand identified give every wand you pick up an individual name to assist you with keeping track of the wands you have in your inventory.
 
 
 
 
 
 
 
Third, treat it like a gun, make sure what you zap only the things you intend to cancel.
 
 
 
 
 
 
 
Zapping yourself with a wand of cancellation will cancel all the items in your inventory. Avoid this problem by not zapping yourself  with any unidentified wands (generally a good idea in practice for any unknown wand) or with an identified wand of cancellation. If you intend to do this on purpose, and there are some very good reasons to do so, make sure all items that you do not wish to have canceled are either not in your inventory by either dropping them, or placing them inside a container in your inventory. Keep in mind a bag of holding will remain a bag of holding if it is zapped the only thing that will change is it's BUC status to uncursed.
 
 
 
 
 
 
 
The real blunder that most people need to worry about is placing the wand of cancellation in a bag of holding, which results in an explosion, that not only will hurt you, it will destroy all items contained within the bag of holding. How can you avoid this mistake. Don't place any unidentified wands in your bag of holding, unless you are certain you have identified the wand of cancellation also do not put your wand of cancellation into your bag of holding unless you really want to do this.
 
 
 
 
 
 
 
Some players will adjust their inventory in a manner so that they know exactly where the wand is to avoid inserting it into the bag of holding. Adjusting the wand to a standard letter you always use for a wand of cancellation for every game you play is good practice, make sure you choose a letter for the wands that you will use the least and make it a capital letter. Some players label a sack 'CANCEL' and will place the wand in that, again adjust your inventory and pick a letter for it that you will use the least and make it a capital letter.
 
 
 
 
 
 
 
Another way to reduce the chance of blowing up your bag of holding after accidental insertion is to embed the wand into multiple sacks. The more sacks used in this manner will reduce the odds of explosion according to this equation (n+1)/2^n; 'n' is the number of sacks used. The denominator will not exceed 128 for all 'n'  greater then or equal to 7 and thus implies there is no reason to use more then 7 sacks. The user should keep in mind that this is a safety feature and is meant to reduce the risk and will not completely eliminate the potential for an explosion.
 
 
 
 
 
 
 
Now the best tip I can give to avoid these game ending mistakes and this applies to most other actions you will take in the game, read all the text and make sure you understand what you are doing at all times. If you find out that you are moving to fast and keep making simple mistakes such as placing a wand of cancellation in your bag of holding then slow down.
 
  
 
==SporkHack==
 
==SporkHack==

Revision as of 11:42, 16 December 2009

/
Name cancellation
Appearance random
Base price 200 zm
Weight 7
Type beam
Maximum charges 8
Monster use Will not be used by monsters.

A wand of cancellation emits a beam which cancels any monsters or objects it hits. Monsters are entitled to a resistance check against the effect.

Warning: Putting a charged wand of cancellation into a bag of holding will cause a magical explosion that will destroy the bag and everything within it. Don't do this. Zapping a bag of holding, however, will either unbless or uncurse it, and will have no effect whatsoever on the contents.

Effects

The wand of cancellation has a number of complicated effects; when you find one, it will behoove you to study thoroughly the article on cancellation before zapping it! Among these effects, it will:

Breaking

If you break a wand of cancellation, there is an explosion from 1 to (4*charges) damage. Monsters and objects in the affected squares are cancelled.

Identification

Engraving on a writing in the dust gives the message "The engraving on the <floor> vanishes!". This can be either a wand of cancellation, make invisible, or teleportation. Further testing is necessary.

Do not zap yourself with an unidentified wand that makes an engraving disappear; if it is a wand of cancellation, you will cancel all items carried in your inventory.

If you have a pet without a special attack (such as a kitten), you can zap an unidentified wand that makes engravings disappear. If the pet disappears, it is either teleportation (and you can find the pet later in the level) or invisibility (which you can see if you have the see invisible intrinsic). To confirm, you can use a stethoscope, the information line from it will say that it has been cancelled.

Another means is to drop an un-needed non-blank scroll and then zap it with the wand. If the scroll vanishes, then the wand is a wand of teleportation, if it remains unchanged then it is a wand of make invisible, if however it changes into a blank scroll then it is a wand of cancellation. Known-cursed objects or stackables that do not stack also work.

Generation

Wands comprise 4% of all randomly-generated items in the main dungeon, 6% in containers, 5% on the Rogue level, and 8% in hell. There is a 4.5% chance that a randomly-generated wand will be a wand of cancellation.

Messages

"You are covered in sparkling lights!"
You've just been zapped by a wand of cancellation. This is possible in SLASH'EM, but not in vanilla.
"You feel a strange sense of loss."
Having been hit, the wand has cancelled an item in your inventory.
"The engraving on the <floor> vanishes!"
You engraved with a wand of cancellation, teleportation, or make invisible where there is an existing engraving, or with a wand of cold where there is an existing burned engraving.

Strategy

A large part of surviving Nethack is forming good habits. Never pick up a wand of cancellation unless you need it, even if you do not (yet) have a bag of holding. Destroying the contents of your bag of holding can be a game-ending mistake. In vanilla, it is safe to leave it since no monster can use cancellation.

Of course, the best tip is to read all the text and make sure you understand what you are doing at all times. If you keep making simple mistakes such as placing a wand of cancellation in your bag of holding, then slow down. However, even attentive players face a slight chance of accident, and in a long game, probabilites do add up.

Some people assign a special "danger" inventory capital letter to this "rod of disaster" (or the sack it is in). You could reduce the chance of blowing up your bag of holding by embedding the wand into multiple sacks, 7 are optimum.

On the other hand, this wand is great to (emergency) uncurse worn stuff - just drop/bag everything else first.

There exists also the opposite school of thought: Always pick up a wand of cancellation, it allegedly is a great way to force yourself to pause and read the text before blindly mashing some key. This is the Nethack equivalent of placing a bomb in every car: Hopefully, people will drive more carefully, reducing total casualities. For unimaginable reasons, this scheme hasn't caught on in the Real World.

SporkHack

In a rare act of kindness, recent versions of SporkHack make an exploding BoH spew its contents around instead of destroying them. Thus, wands of cancellation are less dangerous.

References

  • See the main article on Cancellation for more details on the effects.