Difference between revisions of "Olgreb's Toxic Radiance"

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{{Spell
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{{spell info}}
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|name=Olgreb's Toxic Radiance
 
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|level=4
 
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|school1={{Poison Magic}}
 
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|school2=
 
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|school3=
 
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|sources=<div>
 
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*[[Book of Envenomations]]
 
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*[[Young Poisoner's Handbook]]
 
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</div>
 
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|castingnoise=2
 
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|spellnoise=0
 
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}}
 
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{{Flavour|This spell causes the caster to radiate toxic energy, continuously inflicting poison on everything nearby for as long as the spell lasts. Be warned that this magic is baleful for its user, as the epicenter of the aura is potent enough to afflict even those otherwise resistant to poison.}}
 
  
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[[Olgreb's Toxic Radiance]] (often abbreviated as '''OTR''') is a level 4 [[Poison Magic]] spell which hurts and [[poison]]s any creatures without poison resistance in the caster's [[line of sight]] for a few turns. The damage done is 1d(3+power/25) per turn (time scaled if necessary), and decreases with distance from the caster, doing around 35% damage at the very edge of LOS. This damage ignores [[AC]], and is modified by the victim's poison resistance or vulnerability (monsters with one level of resistance are immune). The player character doesn't suffer this direct damage, unless the spell was cast by a monster, but will be poisoned if not immune to poison. Having [[Cure Poison]] or extra [[potions of curing]] is recommended for those who will be using this spell often. The [[artifact]] [[Staff of Olgreb]] can be evoked to cast this spell and grants immunity to it.
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[[Olgreb's Toxic Radiance]] ('''OTR''') is a level 4 [[Alchemy]] spell which both damages and [[poison]]s any creatures without poison resistance in the caster's [[line of sight]] for a few turns.  
  
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This spell is not the crowd control nuke one might expect. Poison works best when stacked with repeated applications, so using this to directly kill whole groups of monsters would take ages and lots of mana. What this spell ''will'' do is thin out a mixed or partly-injured crowd, killing off weak and injured monsters while chipping away at the stronger ones. It is capable of effectively killing off [[list of insects|insects]] and [[list of arachnids|spiders]] (almost all of which are vulnerable to poison), which makes it very useful in the [[Spider's Nest]] and in [[worker ant|ant]] or [[killer bee|bee]] hives.
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[[Alchemist]]s start with this spell, though it can also be [[evoke]]d using the artefact [[staff of Olgreb]].
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==Useful Info==
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The damage can be split into two parts:
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* '''Impact damage.''' Olgreb's deals <code>1d(1 + pow/20)</code> damage per 1.0 [[decaAut]].<ref>{{source ref|0.31.0|spl-damage.cc|3359}}</ref> Ignores AC. Poison vulnerable monsters take 150% damage from this.
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* '''Poison status.''' Affected monsters have a 50% chance (on cast, and per 1.0 decaAut afterwards) to gain one poison "stack".<ref>{{source ref|0.31.0|spl-damage.cc|3398}}</ref> Monsters that haven't been poisoned yet instead have a 100% chance. Keep in mind that monsters have a limit of 4 stacks. See the [[Poison#Poisoned Condition|Poison]] article for more detail on how poison stacks work.
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Creatures with [[poison resistance]] are completely immune to Olgreb's Toxic Radiance.
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This spell has a duration of <code>1 + 1d(1 + pow/25)</code> turns.<ref>{{source ref|0.31.0|spl-damage.cc|3291}}</ref> Casting this spell again will increase the duration; it does not increase the rate of poison or poison damage.
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==Strategy==
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Olgreb's Toxic Radiance is a great spell for crowd-control. It isn't fast, but it ''is'' good at thinning out a crowd; weakening the strong monsters and killing the chaff. Very effective in the [[Spider's Nest]], as most [[list of insects|insects]] and [[list of arachnids|spiders]] are vulnerable to poison. Also great against evasive enemies in general, such as [[killer bee]]s and [[boggart]]s.
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Works very well with [[Ignite Poison]]. Ignite Poison deals 200% - 300% of expected poison damage, immediately. This makes OTR becomes even better at dealing with crowds, able to wipe entire screens of monsters in just a few turns.
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This spell can be useful even into [[Vaults]] and [[Depths]], as it's decent against monsters like [[vault guard]]s and [[deep troll]]s. Even in [[Zot]], it can clear out [[list of draconians|draconian]]s and [[orb guardian]]s (at least with Ignite Poison). While it's less useful in the lategame, since more and more monsters resist poison, that's to be expected of a level 4 spell.
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===Tips & Tricks===
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*Olgreb's Toxic Radiance deals some direct damage, so it breaks monsters out of [[fear]], and dispels friendly [[summon]]s that don't resist poison.
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*Monsters can have up to 4 poison stacks; monsters that are "extremely poisoned" cannot be poisoned further. In tiles, this is represented with 3 poison drops.
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==Monster Version==
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Players are affected by Olgreb's Toxic Radiance differently. Instead of poison stacks, players take <code>1d(1 + [[HD]] * 0.6)</code> impact damage and then <code>2d(3 + HD/2)</code> HP worth of poison per turn instead.<ref>{{source ref|0.31.0|spl-damage.cc|3372}}</ref> Otherwise, the monster version acts like the player version.
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{{monsters with spell}}
  
 
==History==
 
==History==
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Prior to [[0.13]] this spell poisoned all ''visible'' creatures for a single turn, didn't cause any direct damage. and could be cast when drawing the [[Deck of destruction#Venom card|Venom card]] from a [[Deck of destruction]].
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*Prior to [[0.24]], monsters did less damage with this spell, <code>2d3</code> HP worth of poison per turn.
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*Prior to [[0.24]], this spell did not deal direct damage on cast, and didn't properly trigger ally-harming conducts. Also, it inflicted poison based on actions and not time_taken, so swapping weapons or swinging a [[quick blade]] would cause more poison than waiting or moving.
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*Prior to [[0.19]], the damage of this spell varied by distance and the spell also poisoned the player character.
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*Prior to [[0.13]], this spell poisoned all ''visible'' creatures for a single turn, didn't cause any direct damage. and could be cast when drawing the [[Venom card]] from a [[Deck of destruction]].
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*In [[0.10]], the effectiveness of Olgreb's Toxic Radiance was modified to scale with spell power and to still affect poison-resistant players 10% of the time.
  
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In [[0.10]], the effectiveness of Olgreb's Toxic Radiance was modified to scale with spell power and to still affect poison-resistant players 10% of the time.
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==References==
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<references/>

Latest revision as of 13:25, 14 February 2024

Version 0.31: This article is up to date for the latest stable release of Dungeon Crawl Stone Soup.
Olgreb's toxic radiance.png Olgreb's Toxic Radiance
Level 4
School1 Alchemy
Source(s) The Unrestrained Analects
Young Poisoner's Handbook
Casting noise 2
Spell noise 0
Power Cap 100
Flags Area
Causes the caster to radiate toxic energy, continuously inflicting poison on everything in line of sight for as long as the spell lasts.

Olgreb's Toxic Radiance (OTR) is a level 4 Alchemy spell which both damages and poisons any creatures without poison resistance in the caster's line of sight for a few turns.

Alchemists start with this spell, though it can also be evoked using the artefact staff of Olgreb.

Useful Info

The damage can be split into two parts:

  • Impact damage. Olgreb's deals 1d(1 + pow/20) damage per 1.0 decaAut.[1] Ignores AC. Poison vulnerable monsters take 150% damage from this.
  • Poison status. Affected monsters have a 50% chance (on cast, and per 1.0 decaAut afterwards) to gain one poison "stack".[2] Monsters that haven't been poisoned yet instead have a 100% chance. Keep in mind that monsters have a limit of 4 stacks. See the Poison article for more detail on how poison stacks work.

Creatures with poison resistance are completely immune to Olgreb's Toxic Radiance.

This spell has a duration of 1 + 1d(1 + pow/25) turns.[3] Casting this spell again will increase the duration; it does not increase the rate of poison or poison damage.

Strategy

Olgreb's Toxic Radiance is a great spell for crowd-control. It isn't fast, but it is good at thinning out a crowd; weakening the strong monsters and killing the chaff. Very effective in the Spider's Nest, as most insects and spiders are vulnerable to poison. Also great against evasive enemies in general, such as killer bees and boggarts.

Works very well with Ignite Poison. Ignite Poison deals 200% - 300% of expected poison damage, immediately. This makes OTR becomes even better at dealing with crowds, able to wipe entire screens of monsters in just a few turns.

This spell can be useful even into Vaults and Depths, as it's decent against monsters like vault guards and deep trolls. Even in Zot, it can clear out draconians and orb guardians (at least with Ignite Poison). While it's less useful in the lategame, since more and more monsters resist poison, that's to be expected of a level 4 spell.

Tips & Tricks

  • Olgreb's Toxic Radiance deals some direct damage, so it breaks monsters out of fear, and dispels friendly summons that don't resist poison.
  • Monsters can have up to 4 poison stacks; monsters that are "extremely poisoned" cannot be poisoned further. In tiles, this is represented with 3 poison drops.

Monster Version

Players are affected by Olgreb's Toxic Radiance differently. Instead of poison stacks, players take 1d(1 + HD * 0.6) impact damage and then 2d(3 + HD/2) HP worth of poison per turn instead.[4] Otherwise, the monster version acts like the player version.

The following enemies cast Olgreb's Toxic Radiance:

History

  • Prior to 0.24, monsters did less damage with this spell, 2d3 HP worth of poison per turn.
  • Prior to 0.24, this spell did not deal direct damage on cast, and didn't properly trigger ally-harming conducts. Also, it inflicted poison based on actions and not time_taken, so swapping weapons or swinging a quick blade would cause more poison than waiting or moving.
  • Prior to 0.19, the damage of this spell varied by distance and the spell also poisoned the player character.
  • Prior to 0.13, this spell poisoned all visible creatures for a single turn, didn't cause any direct damage. and could be cast when drawing the Venom card from a Deck of destruction.
  • In 0.10, the effectiveness of Olgreb's Toxic Radiance was modified to scale with spell power and to still affect poison-resistant players 10% of the time.

References

  1. ↑ spl-damage.cc:3359 (0.31.0)
  2. ↑ spl-damage.cc:3398 (0.31.0)
  3. ↑ spl-damage.cc:3291 (0.31.0)
  4. ↑ spl-damage.cc:3372 (0.31.0)
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