Giant Crab Monster DnD 5E

Hello zoologists of all shapes and sizes! welcome to my spellbook and thank you so much for clicked on to our 38th episode of our beast series. Today we have kind of a cool one in store for us today, we’re talking about the giant crab which to me right now sounds delicious man i miss crab. It is found in the basic rule set that is so far as to say. It’s found in kind of all the starter books yet.

It’s also considered to be a CR 1/8 creature and provides 25 experience points on a kill. To be honest i’ve never actually played a game with any of these. Moving forward as a DM i’ll use them but i’ve never gone up against one as a PC. So it seems pretty interesting though. That being said let’s quickly check out his stats here.


So the giant crab is considered to be a medium beast, that is unaligned. So he’s about the size of most adventurous. Which is pretty terrifying but also makes my stomach ache for him 🙂 Ac of 15 which is pretty incredible we actually think about it. 13 Hit points calculated by rolling 3d8 and has a normal speed of 30 feet and a swim speed of 30 feet. So if you kind of do either or.

  • Type: Medium Beast, Unaligned
  • AC: 15
  • HP: 13(3d8)
  • Speed: 30ft, swim30ft

Taking a look at its stats there. You’ll notice he’s actually quite strong and dexterous. However he’s about as dumb as you can get, not very wise and very low charisma as you’d expect from just a crab. He does however have a +4 to stealth which is pretty cool.

  • STR: 13(+1)
  • DEX: 15(+2)
  • CON: 11(+0)
  • INT: 1(-5)
  • WIS: 9(-1)
  • CHA: 3(-4)

Under senses he has both blindsight of 30ft and passive perception of 9 which is nothing to really brag about. He is in Amphibious, So he can breathe air and water which is pretty cool.


Amphibious: By this Amphibious trait the giant crab monster in dnd 5e can breathe air and water.

Now let’s take a quick look at his actions here. So the giant crab actually has an interesting attack. So its claw attack its would be melee weapon +3 to hit, reach of 5ft one target and he has a 4 bludgeoning damage, calculated by rolling 1d6 and adding 1.


Claw: By having this claw attack this dnd 5e monster can make a Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Even it has Hit: 4 (1d6 + 1) bludgeoning damage, and of curse the target has been Grappled (escape DC 11). Of course the crab monster also has two claws, each of them which can grapple only a target. So that’s very interesting stuff. I actually think that’s hilarious.

I think this might actually be a good creature to segue into an underwater adventure at early levels. By that what i mean is imagine you want to run some kind of like a grunt campaign or an atlantian kind of themed campaign or anything like that. But you don’t really know how to get your party down there…this is a great way to force them to go down there.

Have a bunch of giant crabs emerge just grapple him and take him to the groung. I think that would be a pretty cool, pretty funny and it makes sense and i wouldn’t really consider it railroading to any real degree and the drum would be all like.

“Sorry about the misunderstanding adventurers all we need is your help because the mean humans are poisoning our water supply please help us to defeat them…!” i think that would be a pretty cool way to kind of make the adventure flow more linearly and correct the party if they’re deviating too far of course.

Attributes Of Giant Crab Monster DnD 5E

AC15 (Natural Armor)
Challenge Rating1/8
HP13 (3d8)
Passive Perception9
Roll 0Claw 1d20 + 3 1d6+1
SensesBlindsight 30 Ft.
SkillsStealth +4
Speed30 ft., swim 30 ft.

Very cool stuff though, i really do like it. I think the giant crab definitely belongs in a lot of peoples campaigns. So i hope writing this article a lot of you are made aware of them.

That being said let me know how you would use the giant crab in your campaign also be sure to share any comments, questions or concerns you may have regarding the giant crab. That being said i hope you all have a great day and as always happy researching my friends.

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