How does the Prismatic Wall spell handle an AOE?












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Would the indigo layer of a prismatic wall spell (in a spherical shape) block the effect of a fireball, if it had radius bigger than the radius of the wall, cast outside the wall but centered/targeted inside it?










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    6












    $begingroup$


    Would the indigo layer of a prismatic wall spell (in a spherical shape) block the effect of a fireball, if it had radius bigger than the radius of the wall, cast outside the wall but centered/targeted inside it?










    share|improve this question











    $endgroup$















      6












      6








      6





      $begingroup$


      Would the indigo layer of a prismatic wall spell (in a spherical shape) block the effect of a fireball, if it had radius bigger than the radius of the wall, cast outside the wall but centered/targeted inside it?










      share|improve this question











      $endgroup$




      Would the indigo layer of a prismatic wall spell (in a spherical shape) block the effect of a fireball, if it had radius bigger than the radius of the wall, cast outside the wall but centered/targeted inside it?







      dnd-5e spells targeting area-of-effect wall






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      edited Jan 3 at 5:10









      V2Blast

      20.2k357125




      20.2k357125










      asked Jan 2 at 9:39









      orcorcoorcorco

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          1 Answer
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          9












          $begingroup$

          The fireball is blocked



          There's a couple things regarding prismatic wall (in sphere shape) that blocks fireball in your situation.




          • First, the spell cannot target a creature on the inside of the sphere because the caster does not have line of effect (nor line of sight) to that target. So were you to attempt to target someone inside of the sphere, the spell would detonate outside of the sphere.

          • Second, even if the spell were set to detonate outside the sphere, it would not be able to penetrate through the wall because the indigo layer specifically blocks the effect. It is worth noting that if the Prismatic Wall spell was cast in its vertical wall form and the fireball targeted near a corner, it would wrap around the edge and potentially hit someone on the other side.






          share|improve this answer











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          • $begingroup$
            Fireball cast in wall form? Not sure what you mean by that in your second bullet.
            $endgroup$
            – KorvinStarmast
            Jan 2 at 15:11






          • 1




            $begingroup$
            I think he means the prismatic wall being cast in wall form
            $endgroup$
            – Dinomaster
            Jan 2 at 15:18










          • $begingroup$
            Edited to clarify.
            $endgroup$
            – Pyrotechnical
            Jan 2 at 16:48











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          1 Answer
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          active

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          9












          $begingroup$

          The fireball is blocked



          There's a couple things regarding prismatic wall (in sphere shape) that blocks fireball in your situation.




          • First, the spell cannot target a creature on the inside of the sphere because the caster does not have line of effect (nor line of sight) to that target. So were you to attempt to target someone inside of the sphere, the spell would detonate outside of the sphere.

          • Second, even if the spell were set to detonate outside the sphere, it would not be able to penetrate through the wall because the indigo layer specifically blocks the effect. It is worth noting that if the Prismatic Wall spell was cast in its vertical wall form and the fireball targeted near a corner, it would wrap around the edge and potentially hit someone on the other side.






          share|improve this answer











          $endgroup$













          • $begingroup$
            Fireball cast in wall form? Not sure what you mean by that in your second bullet.
            $endgroup$
            – KorvinStarmast
            Jan 2 at 15:11






          • 1




            $begingroup$
            I think he means the prismatic wall being cast in wall form
            $endgroup$
            – Dinomaster
            Jan 2 at 15:18










          • $begingroup$
            Edited to clarify.
            $endgroup$
            – Pyrotechnical
            Jan 2 at 16:48
















          9












          $begingroup$

          The fireball is blocked



          There's a couple things regarding prismatic wall (in sphere shape) that blocks fireball in your situation.




          • First, the spell cannot target a creature on the inside of the sphere because the caster does not have line of effect (nor line of sight) to that target. So were you to attempt to target someone inside of the sphere, the spell would detonate outside of the sphere.

          • Second, even if the spell were set to detonate outside the sphere, it would not be able to penetrate through the wall because the indigo layer specifically blocks the effect. It is worth noting that if the Prismatic Wall spell was cast in its vertical wall form and the fireball targeted near a corner, it would wrap around the edge and potentially hit someone on the other side.






          share|improve this answer











          $endgroup$













          • $begingroup$
            Fireball cast in wall form? Not sure what you mean by that in your second bullet.
            $endgroup$
            – KorvinStarmast
            Jan 2 at 15:11






          • 1




            $begingroup$
            I think he means the prismatic wall being cast in wall form
            $endgroup$
            – Dinomaster
            Jan 2 at 15:18










          • $begingroup$
            Edited to clarify.
            $endgroup$
            – Pyrotechnical
            Jan 2 at 16:48














          9












          9








          9





          $begingroup$

          The fireball is blocked



          There's a couple things regarding prismatic wall (in sphere shape) that blocks fireball in your situation.




          • First, the spell cannot target a creature on the inside of the sphere because the caster does not have line of effect (nor line of sight) to that target. So were you to attempt to target someone inside of the sphere, the spell would detonate outside of the sphere.

          • Second, even if the spell were set to detonate outside the sphere, it would not be able to penetrate through the wall because the indigo layer specifically blocks the effect. It is worth noting that if the Prismatic Wall spell was cast in its vertical wall form and the fireball targeted near a corner, it would wrap around the edge and potentially hit someone on the other side.






          share|improve this answer











          $endgroup$



          The fireball is blocked



          There's a couple things regarding prismatic wall (in sphere shape) that blocks fireball in your situation.




          • First, the spell cannot target a creature on the inside of the sphere because the caster does not have line of effect (nor line of sight) to that target. So were you to attempt to target someone inside of the sphere, the spell would detonate outside of the sphere.

          • Second, even if the spell were set to detonate outside the sphere, it would not be able to penetrate through the wall because the indigo layer specifically blocks the effect. It is worth noting that if the Prismatic Wall spell was cast in its vertical wall form and the fireball targeted near a corner, it would wrap around the edge and potentially hit someone on the other side.







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Jan 3 at 5:11









          V2Blast

          20.2k357125




          20.2k357125










          answered Jan 2 at 13:16









          PyrotechnicalPyrotechnical

          14.7k457134




          14.7k457134












          • $begingroup$
            Fireball cast in wall form? Not sure what you mean by that in your second bullet.
            $endgroup$
            – KorvinStarmast
            Jan 2 at 15:11






          • 1




            $begingroup$
            I think he means the prismatic wall being cast in wall form
            $endgroup$
            – Dinomaster
            Jan 2 at 15:18










          • $begingroup$
            Edited to clarify.
            $endgroup$
            – Pyrotechnical
            Jan 2 at 16:48


















          • $begingroup$
            Fireball cast in wall form? Not sure what you mean by that in your second bullet.
            $endgroup$
            – KorvinStarmast
            Jan 2 at 15:11






          • 1




            $begingroup$
            I think he means the prismatic wall being cast in wall form
            $endgroup$
            – Dinomaster
            Jan 2 at 15:18










          • $begingroup$
            Edited to clarify.
            $endgroup$
            – Pyrotechnical
            Jan 2 at 16:48
















          $begingroup$
          Fireball cast in wall form? Not sure what you mean by that in your second bullet.
          $endgroup$
          – KorvinStarmast
          Jan 2 at 15:11




          $begingroup$
          Fireball cast in wall form? Not sure what you mean by that in your second bullet.
          $endgroup$
          – KorvinStarmast
          Jan 2 at 15:11




          1




          1




          $begingroup$
          I think he means the prismatic wall being cast in wall form
          $endgroup$
          – Dinomaster
          Jan 2 at 15:18




          $begingroup$
          I think he means the prismatic wall being cast in wall form
          $endgroup$
          – Dinomaster
          Jan 2 at 15:18












          $begingroup$
          Edited to clarify.
          $endgroup$
          – Pyrotechnical
          Jan 2 at 16:48




          $begingroup$
          Edited to clarify.
          $endgroup$
          – Pyrotechnical
          Jan 2 at 16:48


















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