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I am trying to build a caster who also does sneak attack damage with their spells. This is for a gestalt game but would like help on accomplishing it if it was normal.

The problems that I have encountered are:

  • There are very few spells which have multiple ray attack rolls and deal lethal damage such as Scorching Ray and Contagious Flame. I am trying to avoid spell/feat creation.
  • To deal sneak attack you have a limited setting in which it can be used
    • before they act in combat
    • flanking (but ranged touch attacks dont benefit from flanking)
    • sniping (which implies greater invisibility basically every combat)
    • arcane trickster prestige class
  • Sneak attack rules on spells a little vague, best examples come from arcane trickster.
    • AoE spells normally cant benefit (arcane trickster can allow this)
    • Single ray spells benefit once as expected
    • no attack roll but multiple rays like magic missile only get one sneak attack applied even if each hits a different target
    • Unclear how spells like Scorching Ray have it applied. Either each ray gets it or only one ray.
    • DoT spells like acid arrow, is it applied only on the first hit or is it dealt each round?

So while its entirely possible to do sneak attack damage with spells, the rather small selection of multiple ray attacks and the restrictive conditions required to benefit from sneak attack makes it very challenging to use reliably.

My plan was to take wizard or Arcanist on one side and rogue (or something) on the other. The arcane trickster while interesting, doesnt really help.

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closed as too broad by the dark wanderer, user17995, Dale M, V2Blast, Oblivious Sage May 26 '18 at 12:57

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

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    \$\begingroup\$ Related: "What is required to be able to sneak attack with a spell or ranged attack?" \$\endgroup\$ – MikeQ May 26 '18 at 5:09
  • \$\begingroup\$ @MikeQ Thanks, I didnt know about that question \$\endgroup\$ – Fering May 26 '18 at 5:20
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    \$\begingroup\$ What's the question? \$\endgroup\$ – Hey I Can Chan May 26 '18 at 7:51
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    \$\begingroup\$ I think this would be a better question for this site once you have substantially more of your character complete. Alternatively, you could ask if there are any notable builds that make use of spell-based sneak attacks, but I believe the answer to that is 'no'. You could also ask what spell is best, offensively, for a gestalt Arcanist//full sneak attacker without Surprise Spells at each level, which would be an interesting question and I will ask that if you don't. \$\endgroup\$ – the dark wanderer May 26 '18 at 8:03
  • \$\begingroup\$ @thedarkwanderer Go ahead and ask, clearly Im not asking this one correctly \$\endgroup\$ – Fering May 26 '18 at 21:22