I've been looking for the most effective ways to damage a Rakshasa as a spellcaster, before L7 slots become available. After reading the 3 questions below,

  1. Is a Rakshasa immune to Animate Objects?
  2. Can Maximilian's Earthen Grasp or Bigby's Hand target a Rakshasa?
  3. Does a Mundane Arrow Fired From a Magical Bow Count as a Magical Weapon Attack?

I'm wondering if the following spells will work:

  1. Magic Weapon: Per the last question, my reading is that a Wizard could cast this on a crossbow (or bow, if they have proficiency), and deal semi-decent damage (assuming they are good aligned, it would target the R's vulnerability).
  2. Alter Self (Natural Weapons, Piercing): Similar idea, available to other classes, though would require going into melee (not so problematic due to damage, but due to Curse).
  3. Elemental Weapon: Similar idea, though I'm not sure if the bonus elemental damage applies.
  4. Shillelagh: Doesn't target the R's vulnerability, but a Druid could go this route if desperate for damage.

Are there other (better?) ways for casters to damage this sucker before L7 slots are available?

Note: I'm aware that buffing/assisting is another way to contribute to the fight--I'm interested specifically in offensive options available.

  • \$\begingroup\$ Cast illusion for a floor over a deep pit. (Deep pit has to be real or there's no point.) \$\endgroup\$ – Joshua Jan 9 at 20:50

Other than summoning spells, you don't have a lot of options

The rakshasa will be immune to damage from all of the spells you mentioned above. Jeremy Crawford has addressed several of these spells:

Q: Hi Jeremy, does a Rakshasa's 'Limited Magic Immunity' protect it from weapons enhanced by shillelagh or the magic weapon spell since they are spell effects?

A: Shillelagh and magic weapon are spells. Limited Magic Immunity prevents a rakshasa from being affected by spells of 6th level or lower, unless it wishes to be.

As elemental weapon is a similar weapon enhancing spell, I have every reason to believe that the ruling would be similar on it.

As far as Alter Self goes, the damage you could do (and the fact that the damage is magical) are parts of the effects of the spell. And:

The rakshasa can’t be affected or detected by spells of 6th level or lower unless it wishes to be. (MM, p. 257 post errata)

The fact that summoned creatures can still damage the Rakshasa was also explicitly spelled out by Jeremy Crawford and justified thusly:

A rakshasa's Limited Magic Immunity offers no protection against a summoned creature. The creature's presence is a spell effect. The creature itself is not a spell effect.

In all of the spells you mentioned, the damage done is itself a spell effect. So the Rakshasa will be immune to these effects.

Since the Rakshasa has immunity to "bludgeoning, piercing, and slashing from non-magical attacks", one of the only ways to injure a Rakshasa with a spell of 6th level (or lower) when it does not wish to be damaged is by summoning a creature that can do some other form of damage. An example would be casting Conjure Elemental (a 5th level spell) and summoning a Fire Elemental. This Elemental's attacks would do fire damage, to which the Rakshasa is not immune.

  • 10
    \$\begingroup\$ Yeah, I get shillelagh, but I find it really hard to understand the JC ruling on magic weapon. Paraphrasing the quote about summoned creatures – the change in nature of the weapon is the spell effect, your (now magical +1) weapon and it's damage are not part of the spell's effects. \$\endgroup\$ – J.E Jan 9 at 12:28
  • 5
    \$\begingroup\$ Buffs on creatures seem like they should work fine. Honestly, Jeremy Crawford’s tweet about magic on weapons doesn’t make a whole lot of sense to me, either. \$\endgroup\$ – KRyan Jan 9 at 15:01
  • \$\begingroup\$ Can you explain a bit more about the magic weapon ruling here? You seem to think it makes sense and I think it would pay to explain the kind of logic you see in it. Or if you don't think it makes sense to call that out. \$\endgroup\$ – Rubiksmoose Jan 9 at 15:30
  • \$\begingroup\$ @Rubiksmoose what does logic matter if this is RAW now? \$\endgroup\$ – András Jan 9 at 16:47
  • 5
    \$\begingroup\$ @András because it is not RAW now. RAW refers only to what is written in the books. JC can offer his interpretations of what the rules say but he can't change what is actually written there outside of errata. And Crawford explicitly agrees with this. Crawford makes rulings not rules on Twitter. See here and here for extended thoughts on the matter. \$\endgroup\$ – Rubiksmoose Jan 9 at 16:53

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.