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SYSTEM REFERENCE DOCUMENT 3.5

 
CR Modifiers for Mechanical Traps Table

Table: CR Modifiers for Mechanical Traps

Feature

CR Modifier

Search DC

 

15 or lower

–1

25–29

+1

30 or higher

+2

Disable Device DC

 

15 or lower

–1

25–29

+1

30 or higher

+2

Reflex Save DC (Pit or Other Save-Dependent Trap)

 

15 or lower

–1

16–24

25–29

+1

30 or higher

+2

Attack Bonus (Melee or Ranged Attack Trap)

 

+0 or lower

–2

+1 to +5

–1

+6 to +14

+15 to +19

+1

+20 to +24

+2

Damage/Effect

 

Average damage

+1/7 points*

Miscellaneous Features

 

Alchemical device

Level of spell mimicked

Liquid

+5

Multiple target

+1 (or 0 if never miss)

Onset delay 1 round

+3

Onset delay 2 rounds

+2

Onset delay 3 rounds

+1

Onset delay 4+ rounds

–1

Poison

CR of poison (see below)

Black adder venom

+1

Large scorpion venom

+3

Black lotus extract

+8

Malyss root paste

+3

Bloodroot

+1

Medium spider venom

+2

Blue whinnis

+1

Nitharit

+4

Burnt othur fumes

+6

Purple worm poison

+4

Deathblade

+5

Sassone leaf residue

+3

Dragon bile

+6

Shadow essence

+3

Giant wasp poison

+3

Small centipede poison

+1

Greenblood oil

+1

Terinav root

+5

Insanity mist

+4

Ungol dust

+3

Wyvern poison

+5

 

 

Pit spikes

+1

Touch attack

+1

* Rounded to the nearest multiple of 7 (round up for an average that lies exactly between two numbers).

 

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