My spellthief (who possesses the type outsider) casts the spell polymorph to assume the form of a kelvezu (Monster Manual II 60, 61—2). Does my spellthief lose his normal sneak attack and gain the +8d6 sneak attack of the kelvezu form?

  • \$\begingroup\$ I think you may be asking two questions. The first regarding whether you gain the Kelvezu's sneak attack dice when polymorphed into one. The other seems to be about whether you keep your feats while polymorphed. I would recommend editing down to just one question and creating a new question for the other. \$\endgroup\$ Feb 29, 2020 at 21:35
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    \$\begingroup\$ Combining those questions is reasonable, I think, but we do need to know how you are turning into a kelvezu—is that literally the polymorph spell? Every form of changing forms is different, unfortunately. \$\endgroup\$
    – KRyan
    Feb 29, 2020 at 22:07
  • \$\begingroup\$ Sorry, I should have specified the situation of my character in the description first. My spellthief is a shade, so it is considered to be of the outsider type, in this way I can use polymorph (as a spellthief's 4th level spell) to turn myself into a Kelvezu. \$\endgroup\$
    – Verdict
    Mar 1, 2020 at 0:55

1 Answer 1


There are really two parts to this question. First:

Does my spellthief lose his normal sneak attack?

NO: Polymorph and Alter Self are explicit in what you "lose" when you change shape, and those things are:

  • Racial supernatural and spell-like abilities for which you do not have the necessary body parts
  • Racial EX attacks and special qualities
  • Racial physical qualities (replaced with new form's)
  • Spellcasting (if the new form cannot provide the necessary component)

Sorry, i originally answered this for a rogue and not a spellthief, but the answers are unchanged. A spellthief's sneak attack is a class-granted EX attack. As such, it is not lost when using polymorph.


Do I gain the +8d6 sneak attack of the kelvezu form?

YES: The sneak attack for a spellthief explicitly states:

If a spellthief gets a sneak attack bonus from another source (such as rogue levels), the bonuses on damage stack.

This is actually just a restatement of the trend that all sources of sneak attack tend to stack.


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