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Repair. You can restore 10 hit points to a damaged ob-  SPELLCASTING
         ject for each hour of work. For any object, you need ac-
          cess to the raw materials required to repair it. For metal   This section expands on the spellcasting rules pre-
          objects, you need access to an open flame hot enough to   sented in the Player's Handbook and the Dungeon Mas-
          make the metal pliable.                               ter's Guide, providing clarifications and new options.

                                                                PERCEIVING A  CASTER AT WORK
          TINKER'S TOOLS
          Activity                                   DC         Many spells create obvious effects: explosions of fire,
                                                                walls of ice, teleportation, and the like. Other spells,
          Temporarily repair a disabled device       10
                                                                such as charm person, display no visible, audible, or oth-
          Repair an item in  half the time           15
                                                                erwise perceptible s ign of their effects, and could easily
          Improvise a temporary item using scraps    20
                                                                go unnoticed by someone una ffected by them. As noted
                                                                in the Player's Handbook, you normally don't know that
         WEAVER'S TOOLS
                                                                a spell  has been cast unless the spell produces a notice-
          Weaver's tools allow you to create cloth and tailor it into
                                                                able effect.
          articles of clothing.                                   But what about the act of casting a spell? Is it possible
           Components. Weaver's tools include thread, needles,   for someone to perceive that a spell is being cast in their
          and scraps of cloth. You know how to work a loom, but   presence? To be perceptible, the casting of a spell must
         such equipment is too large to transport.
                                                                involve a verbal, somatic, or material component. The
           Arcana, History. Your expertise lends you additional
                                                                form of a material component doesn't matter for the
          insight when examining cloth objects, including cloaks   purposes of perception, whether it's an object specified
          and robes.                                            in the spell's description, a component pouch, or a spell-
           Investigation. Using your knowledge of the process of
                                                                casting focus.
         creating cloth objects, you can spot clues and make de-  If the need for a spell's components has been removed
         ductions that others would overlook when you examine
                                                                by a special ability, such as the sorcerer's Subtle Spell
          tapestries, upholstery, clothing, and other woven items.
                                                                feature or the Innate Spellcasting trait possessed by
           Repair. As part of a short rest, you can repair a s ingle   many creatures, the casting of the s pell is imperceptible.
         damaged cloth object.                                  If an imperceptible casting produces a  perceptible ef-
           Craft Clothing. Assuming you have access to suf-
                                                                fect, it's normally impossible to determine who cast the
          ficient cloth and thread, you can create a n outfit for a
                                                                spell in the absence of other evidence.
         creature as part of a long rest.
                                                                IDENTIFYING A  SPELL
         WEAVER'S TOOLS
                                                                Sometimes a character wants to identify a spell that
          Activity                                  DC          someone else is casting or that was already cast. To do
          Repurpose cloth                            10         so, a character can use their reaction to identify a spell
          Mend a hole in a piece of cloth            10         as it's being cast, or they can use an action on their turn
          Tailor an outfit                           15         to identify a spell by its effect after it is cast.
                                                                 If the character perceived the casting, the spell's ef-
         WOODCARVER'S TOOLS                                     fect, or both, the  character can make an Intelligence (Ar-
         Woodcarver's tools a llow you to craft intricate objects   cana) check with the reaction or action. The DC equals
         from wood, such as wooden tokens or arrows.            15 + the spel l's level. If the spell is cast as a class spell
           Components. Woodcarver's tools consist of a knife, a   and the character is a member of that class, the check
         gouge, a nd a small saw.                               is made with advantage. For example, if the spellcaster
           Arcana, History. Your expertise lends you additional   casts a spell as a cleric, another cleric has advantage on
         ins ight when you examine wooden objects, such as figu-  the check to identify the spell. Some spells aren't asso-
         rines or arrows.                                       ciated with any class when they're cast, such as when a
           Nature. Your knowledge of wooden objects gives you   monster uses its Innate Spellcasting trait.
         some added insight when you examine trees.              This Intelligence (Arcana) check represents the fact
           Repair. As part of a short rest, you can repair a s ingle   that identifying a spell  requires a quick mind and famil-
         damaged wooden object.                                 iarity with.the theory and practice of casting. This is
           Craft Arrows. As part of a short rest, you can craft   true even for a character whose spellcasting ability is
         up to five arrows. As part of a long rest, you can craft   Wisdom or Charisma. Being able to cast spells doesn't
         up to twenty. You must have enough wood on hand to     by itself make you adept at deducing exactly what others
         produce them.                                          are doing when they cast their spells.
         WooocARVER's TooLs                                     INVALID  SPELL TARGETS
          Activity                                  DC          A spell specifies what a caster can target with it: any
          Craft a  small wooden figurine            10          type of creature, a creature of a certain type (humanoid
                                                                or beast, for instance), an object, an area, the caster,
          Carve an intricate pattern in wood        15
                                                                or something else. But w hat happens if a spell tar-
                                                                gets something that isn't a valid target? For example,


                                                                              CHAPTER 2  I DUNGEON MASTER'S TOOLS
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