Giant Mud Leeches for 5e D&D

Leeches. Ew. They’re pretty gross. But hey, I need some for my D&D campaign today. So I’m going to make ’em anyways.

Design Notes

Leeches should be pretty simple to create. It’s just a matter of taking an insect and scaling it up. Plus, I want to make them hard to see in mud, so they’ll get mud camouflage.

Also, it looks like there are giant leeches in Pathfinder. So that makes finding art a little easier, too!

As usual, these are free to use in your campaigns, just not commercially. And the mud isn’t mine, it’s borrowed.


Giant Mud Leech

Small monstrosity, unaligned

Armor Class 13 (natural armor)

Hit Points 7 (2d6)

Speed 20 ft., swim 30 ft.

Abilities Str 6 (-4), Dex 14 (+2), Con 10 (+0), Int 1 (-5), Wis 7 (-2), Cha 1 (-5)

Senses blindsight 30 ft., passive Perception 8


Challenge 1/4 (50 XP)

Mud Camouflage. The mud leech has advantage on Dexterity (Stealth) checks made to hide in muddy terrain.


Blood Drain. Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 6 (1d8 + 2) piercing damage and the mud leech attached to the target. While attached, the mud leech doesn’t attack. Instead, at the start of each of the mud leech’s turns, the target loses 6 (1d8 + 2) hit points due to blood loss.

The mud leech can detach itself by spending 5 feet of its movement. It does so after it drains 20 hit points of blood from the target, the target dies, or if the mud leech takes any fire damage. A creature, including the target, can detach the mud leech by making a successful DC 12 Strength check.

Thanks for reading!

As usual, it’s Saturday, so I’m to cook up a few more monsters before the day is done.

1 thought on “Giant Mud Leeches for 5e D&D

  1. I feel as though this would be a perfect combat opportunity for Heward’s Handy Spice Pouch, given how salt hurts leeches.

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

%d bloggers like this: