Damage roll on critical hit with multiple abilities/spells?











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I have built a 5th Level Rogue Swashbuckler who took Magic Initiate feat at Level 4 to do some extra damage with Booming Blade and Green Flame Blade.



When using a normal rapier with Booming Blade at current level on a Sneak Attack he deals: 1d8 weapon damage + Dex mod + 1d8 thunder damage and 3d6 Sneak Attack.



Do all of the dice double on a Critical Hit/"Nat 20"?



Would the total roll then be: 2d8 weapon damage + Dex mod + 2d8 thunder damage + 6d6 Sneak attack damage?



So would this be an instance that a weapon attack, a spell, and ability crits?










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    up vote
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    down vote

    favorite
    1












    I have built a 5th Level Rogue Swashbuckler who took Magic Initiate feat at Level 4 to do some extra damage with Booming Blade and Green Flame Blade.



    When using a normal rapier with Booming Blade at current level on a Sneak Attack he deals: 1d8 weapon damage + Dex mod + 1d8 thunder damage and 3d6 Sneak Attack.



    Do all of the dice double on a Critical Hit/"Nat 20"?



    Would the total roll then be: 2d8 weapon damage + Dex mod + 2d8 thunder damage + 6d6 Sneak attack damage?



    So would this be an instance that a weapon attack, a spell, and ability crits?










    share|improve this question


























      up vote
      3
      down vote

      favorite
      1









      up vote
      3
      down vote

      favorite
      1






      1





      I have built a 5th Level Rogue Swashbuckler who took Magic Initiate feat at Level 4 to do some extra damage with Booming Blade and Green Flame Blade.



      When using a normal rapier with Booming Blade at current level on a Sneak Attack he deals: 1d8 weapon damage + Dex mod + 1d8 thunder damage and 3d6 Sneak Attack.



      Do all of the dice double on a Critical Hit/"Nat 20"?



      Would the total roll then be: 2d8 weapon damage + Dex mod + 2d8 thunder damage + 6d6 Sneak attack damage?



      So would this be an instance that a weapon attack, a spell, and ability crits?










      share|improve this question















      I have built a 5th Level Rogue Swashbuckler who took Magic Initiate feat at Level 4 to do some extra damage with Booming Blade and Green Flame Blade.



      When using a normal rapier with Booming Blade at current level on a Sneak Attack he deals: 1d8 weapon damage + Dex mod + 1d8 thunder damage and 3d6 Sneak Attack.



      Do all of the dice double on a Critical Hit/"Nat 20"?



      Would the total roll then be: 2d8 weapon damage + Dex mod + 2d8 thunder damage + 6d6 Sneak attack damage?



      So would this be an instance that a weapon attack, a spell, and ability crits?







      dnd-5e sneak-attack critical-hit






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      share|improve this question













      share|improve this question




      share|improve this question








      edited 1 hour ago









      linksassin

      3,95711042




      3,95711042










      asked 1 hour ago









      Jhyarelle Silver

      2,56031651




      2,56031651






















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          accepted










          Your calculation is correct



          When your score a critical hit all damage dice are doubled. This also works for Paladin Smites (which are declared after the attack roll) and all other damage increasing spells/abilities (e.g. Hex, Hunter's Mark, etc.).




          Critical Hits



          When you score a critical hit, you get to roll extra dice for the attack's damage against the target. Roll all of the attack's damage dice twice and add them together. Then add any relevant modifiers as normal. (PHB.196)




          As Vylix points out, Booming Blade deals an addition 1d8 damage if the target moves before the start of your next turn. This damage is not effected by the critical hit.



          In the case of Green Flame Blade, which deals fire damage equal to your spellcasting modifier to a secondary target. As this damage is not a dice roll is does not crit. However at 5th level you add 1d8 to both the primary and secondary targets. These extra dice do double on a critical hit.






          share|improve this answer























          • @Vylix added special case for booming blade and green flame blade
            – linksassin
            25 mins ago






          • 1




            @Vylix I've tried to clarify it. I was trying to be concise and not quote the entire spell since it's only a side point of the answer.
            – linksassin
            18 mins ago










          • The splash damage does not crit : sageadvice.eu/2017/05/24/…
            – Vylix
            15 mins ago










          • @Vylix another great example of Sage Advice going against RAW and logic
            – András
            8 mins ago











          Your Answer





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          1 Answer
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          1 Answer
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          active

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          active

          oldest

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          active

          oldest

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          up vote
          6
          down vote



          accepted










          Your calculation is correct



          When your score a critical hit all damage dice are doubled. This also works for Paladin Smites (which are declared after the attack roll) and all other damage increasing spells/abilities (e.g. Hex, Hunter's Mark, etc.).




          Critical Hits



          When you score a critical hit, you get to roll extra dice for the attack's damage against the target. Roll all of the attack's damage dice twice and add them together. Then add any relevant modifiers as normal. (PHB.196)




          As Vylix points out, Booming Blade deals an addition 1d8 damage if the target moves before the start of your next turn. This damage is not effected by the critical hit.



          In the case of Green Flame Blade, which deals fire damage equal to your spellcasting modifier to a secondary target. As this damage is not a dice roll is does not crit. However at 5th level you add 1d8 to both the primary and secondary targets. These extra dice do double on a critical hit.






          share|improve this answer























          • @Vylix added special case for booming blade and green flame blade
            – linksassin
            25 mins ago






          • 1




            @Vylix I've tried to clarify it. I was trying to be concise and not quote the entire spell since it's only a side point of the answer.
            – linksassin
            18 mins ago










          • The splash damage does not crit : sageadvice.eu/2017/05/24/…
            – Vylix
            15 mins ago










          • @Vylix another great example of Sage Advice going against RAW and logic
            – András
            8 mins ago















          up vote
          6
          down vote



          accepted










          Your calculation is correct



          When your score a critical hit all damage dice are doubled. This also works for Paladin Smites (which are declared after the attack roll) and all other damage increasing spells/abilities (e.g. Hex, Hunter's Mark, etc.).




          Critical Hits



          When you score a critical hit, you get to roll extra dice for the attack's damage against the target. Roll all of the attack's damage dice twice and add them together. Then add any relevant modifiers as normal. (PHB.196)




          As Vylix points out, Booming Blade deals an addition 1d8 damage if the target moves before the start of your next turn. This damage is not effected by the critical hit.



          In the case of Green Flame Blade, which deals fire damage equal to your spellcasting modifier to a secondary target. As this damage is not a dice roll is does not crit. However at 5th level you add 1d8 to both the primary and secondary targets. These extra dice do double on a critical hit.






          share|improve this answer























          • @Vylix added special case for booming blade and green flame blade
            – linksassin
            25 mins ago






          • 1




            @Vylix I've tried to clarify it. I was trying to be concise and not quote the entire spell since it's only a side point of the answer.
            – linksassin
            18 mins ago










          • The splash damage does not crit : sageadvice.eu/2017/05/24/…
            – Vylix
            15 mins ago










          • @Vylix another great example of Sage Advice going against RAW and logic
            – András
            8 mins ago













          up vote
          6
          down vote



          accepted







          up vote
          6
          down vote



          accepted






          Your calculation is correct



          When your score a critical hit all damage dice are doubled. This also works for Paladin Smites (which are declared after the attack roll) and all other damage increasing spells/abilities (e.g. Hex, Hunter's Mark, etc.).




          Critical Hits



          When you score a critical hit, you get to roll extra dice for the attack's damage against the target. Roll all of the attack's damage dice twice and add them together. Then add any relevant modifiers as normal. (PHB.196)




          As Vylix points out, Booming Blade deals an addition 1d8 damage if the target moves before the start of your next turn. This damage is not effected by the critical hit.



          In the case of Green Flame Blade, which deals fire damage equal to your spellcasting modifier to a secondary target. As this damage is not a dice roll is does not crit. However at 5th level you add 1d8 to both the primary and secondary targets. These extra dice do double on a critical hit.






          share|improve this answer














          Your calculation is correct



          When your score a critical hit all damage dice are doubled. This also works for Paladin Smites (which are declared after the attack roll) and all other damage increasing spells/abilities (e.g. Hex, Hunter's Mark, etc.).




          Critical Hits



          When you score a critical hit, you get to roll extra dice for the attack's damage against the target. Roll all of the attack's damage dice twice and add them together. Then add any relevant modifiers as normal. (PHB.196)




          As Vylix points out, Booming Blade deals an addition 1d8 damage if the target moves before the start of your next turn. This damage is not effected by the critical hit.



          In the case of Green Flame Blade, which deals fire damage equal to your spellcasting modifier to a secondary target. As this damage is not a dice roll is does not crit. However at 5th level you add 1d8 to both the primary and secondary targets. These extra dice do double on a critical hit.







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited 19 mins ago

























          answered 1 hour ago









          linksassin

          3,95711042




          3,95711042












          • @Vylix added special case for booming blade and green flame blade
            – linksassin
            25 mins ago






          • 1




            @Vylix I've tried to clarify it. I was trying to be concise and not quote the entire spell since it's only a side point of the answer.
            – linksassin
            18 mins ago










          • The splash damage does not crit : sageadvice.eu/2017/05/24/…
            – Vylix
            15 mins ago










          • @Vylix another great example of Sage Advice going against RAW and logic
            – András
            8 mins ago


















          • @Vylix added special case for booming blade and green flame blade
            – linksassin
            25 mins ago






          • 1




            @Vylix I've tried to clarify it. I was trying to be concise and not quote the entire spell since it's only a side point of the answer.
            – linksassin
            18 mins ago










          • The splash damage does not crit : sageadvice.eu/2017/05/24/…
            – Vylix
            15 mins ago










          • @Vylix another great example of Sage Advice going against RAW and logic
            – András
            8 mins ago
















          @Vylix added special case for booming blade and green flame blade
          – linksassin
          25 mins ago




          @Vylix added special case for booming blade and green flame blade
          – linksassin
          25 mins ago




          1




          1




          @Vylix I've tried to clarify it. I was trying to be concise and not quote the entire spell since it's only a side point of the answer.
          – linksassin
          18 mins ago




          @Vylix I've tried to clarify it. I was trying to be concise and not quote the entire spell since it's only a side point of the answer.
          – linksassin
          18 mins ago












          The splash damage does not crit : sageadvice.eu/2017/05/24/…
          – Vylix
          15 mins ago




          The splash damage does not crit : sageadvice.eu/2017/05/24/…
          – Vylix
          15 mins ago












          @Vylix another great example of Sage Advice going against RAW and logic
          – András
          8 mins ago




          @Vylix another great example of Sage Advice going against RAW and logic
          – András
          8 mins ago


















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