Temperate Aquatic Random Encounters CR 4
| d100 | Total CR | Name | Numbers | CR | Type | Size | Book |
| 1-2 | 4 | Blackskate | 1 | 4 | Undead | Large | Stormwrack |
| 3-4 | 4 | Bloodhulk Fighter | 1 | 4 | Undead | Medium | MM4 |
| 5-6 | 4 | Brain in a jar | 1 | 4 | Undead | Tiny | Libris Mortis |
| 7-8 | 4 | Bullywug | 4 | 1 | Humanoid | Medium | Monsters of Faerûn |
| 9-10 | 4 | Changeling, 1st-Level Warrior | 11 | 1/2 | Humanoid | Medium | MM3 |
| 11-12 | 4 | Clay Half-Golem | 1 | 4 | Construct | Medium | MM2 |
| 13-14 | 4 | Clockroach | 5 | 1 | Construct | Small | MM4 |
| 15-16 | 4 | Corpse Rat Swarm | 1 | 4 | Undead | Tiny | Libris Mortis |
| 17-18 | 4 | Darfellan, 1st-Level Warrior | 8 | 1/2 | Humanoid | Medium | Stormwrack |
| 19-20 | 4 | Desiccator | 2 | 2 | Undead | Small | Libris Mortis |
| 21-22 | 4 | Dire Rat | 16 | 1/3 | Animal | Small | MM1 |
| 23-24 | 4 | Dire Rat Skeleton | 16 | 1/3 | Undead | Small | Libris Mortis |
| 25-26 | 4 | Dire Rat Zombie | 11 | 1/2 | Undead | Small | Libris Mortis |
| 27-28 | 4 | Dragonflesh Half-Golem | 1 | 4 | Construct | Medium | MM2 |
| 29-30 | 4 | Dread | 2 | 2 | Undead | Small | Lost Empires of Faerûn |
| 31-32 | 4 | Eunuch Clockwork | 1 | 4 | Construct | Medium | Dragon #334 |
| 33-34 | 4 | Flameskull | 1 | 4 | Undead | Tiny | Lost Empires of Faerûn |
| 35 | 4 | Flesh Half-Golem | 1 | 4 | Construct | Medium | MM2 |
| 36 | 4 | Fleshvigor Ghoul | 2 | 2 | Undead | Medium | Dragon #315 |
| 37 | 4 | Force Golem | 1 | 4 | Construct | Large | MM5 |
| 38 | 4 | Gargoyle | 1 | 4 | Humanoid | Medium | MM1 |
| 39 | 4 | Gauntlet Guardian | 1 | 4 | Construct | Small | Complete Warrior |
| 40 | 4 | Ghoul | 4 | 1 | Undead | Medium | MM1 |
| 41 | 4 | Giant Maggot | 11 | 1/2 | Vermin | Small | Underdark |
| 42 | 4 | Gnome Warrior Zombie | 11 | 1/2 | Undead | Small | Libris Mortis |
| 43 | 4 | Grandfather Plaque | 1 | 4 | Construct | Small | Dragon Compendium - Volume I |
| 44 | 4 | Guardgoyle | 2 | 2 | Construct | Small | Waterdeep |
| 45 | 4 | Halfling Warrior Skeleton | 16 | 1/3 | Undead | Small | Libris Mortis |
| 46 | 4 | Hammerclaw | 1 | 4 | Magical Beast | Large | Stormwrack |
| 47 | 4 | Hammerer | 1 | 4 | Construct | Medium | MM2 |
| 48 | 4 | Hippocampus | 2 | 2 | Magical Beast | Large | Stormwrack |
| 49 | 4 | Hound Archon Zombie | 1 | 4 | Undead | Medium | Libris Mortis |
| 50 | 4 | Human Commoner Zombie | 11 | 1/2 | Undead | Medium | MM1 |
| 51 | 4 | Human Warrior Skeleton | 16 | 1/3 | Undead | Medium | MM1 |
| 52 | 4 | Iron Half-Golem | 1 | 4 | Construct | Medium | MM2 |
| 53 | 4 | Kuo-Toa | 2 | 2 | Humanoid | Medium | MM1 |
| 54 | 4 | Kuo-Toa Harpooner | 1 | 4 | Humanoid | Medium | MM5 |
| 55 | 4 | Lacedon | 4 | 1 | Undead | Medium | MM1 |
| 56 | 4 | Large Monstrous Crab | 1 | 4 | Vermin | Large | Stormwrack |
| 57 | 4 | Large Monstrous Diving Spider | 2 | 2 | Vermin | Large | Stormwrack |
| 58 | 4 | Lesser Bonedrinker | 1 | 4 | Undead | Small | MM3 |
| 59 | 4 | Living Wall 4th-level Human Warrior | 1 | 4 | Undead | Medium | Dragon #343 |
| 60 | 4 | Medium Monstrous Crab | 2 | 2 | Vermin | Medium | Stormwrack |
| 61 | 4 | Medium Monstrous Diving Spider | 5 | 1 | Vermin | Medium | Stormwrack |
| 62 | 4 | Merfolk | 11 | 1/2 | Humanoid | Medium | MM1 |
| 63 | 4 | Moonrat | 20 | 1/4 | Magical Beast | Tiny | MM2 |
| 64 | 4 | Nereid | 1 | 4 | Fey | Medium | Stormwrack |
| 65 | 4 | Nether Hound Ghast | 1 | 4 | Undead | Medium | Dragon #322 |
| 66 | 4 | Nixie | 4 | 1 | Fey | Small | MM1 |
| 67 | 4 | Painspeaker | 1 | 4 | Undead | Medium | Tome of Magic |
| 68 | 4 | Porpoise | 11 | 1/2 | Animal | Medium | MM1 |
| 69 | 4 | Ravenous Ghoulish 1st-level Halfling Warrior | 2 | 2 | Undead | Small | Dragon Compendium - Volume I |
| 70 | 4 | Sea Cat | 1 | 4 | Magical Beast | Large | MM1 |
| 71 | 4 | Sea Hag | 1 | 4 | Humanoid | Medium | MM1 |
| 72 | 4 | Serpentir | 1 | 4 | Undead | Large | MM5 |
| 73 | 4 | Shalarin | 11 | 1/2 | Humanoid | Medium | Monsters of Faerûn |
| 74 | 4 | Skulking Cyst | 1 | 4 | Undead | Small | Libris Mortis |
| 75 | 4 | Small Monstrous Crab | 11 | 1/2 | Vermin | Small | Stormwrack |
| 76 | 4 | Small Monstrous Diving Spider | 11 | 1/2 | Vermin | Small | Stormwrack |
| 77 | 4 | Spectral Lyrist | 1 | 4 | Undead | Medium | Libris Mortis |
| 78 | 4 | Spellstitched Ghast | 1 | 4 | Undead | Medium | Complete Arcane |
| 79 | 4 | Spirit Folk | 10 | 1/2 | Humanoid | Medium | Unapproachable East |
| 80 | 4 | Stone Half-Golem | 1 | 4 | Construct | Medium | MM2 |
| 81 | 4 | Tatterdemanimal | 5 | 1 | Construct | Small | MM2 |
| 82 | 4 | Taunting Haunt | 1 | 4 | Undead | Medium | MM5 |
| 83 | 4 | Tiny Monstrous Diving Spider | 16 | 1/4 | Vermin | Tiny | Stormwrack |
| 84 | 4 | Tirbana Drowser | 2 | 2 | Magical Beast | Small | MM5 |
| 85 | 4 | Tirbana Eyewing | 11 | 1/2 | Magical Beast | Tiny | MM5 |
| 86 | 4 | Tirbana Slayer | 1 | 4 | Magical Beast | Medium | MM5 |
| 87 | 4 | Triton | 2 | 2 | Outsider | Medium | MM1 |
| 88 | 4 | Very young Crested Sea Serpent | 1 | 4 | Dragon | Medium | Dragon #345 |
| 89 | 4 | Very young Mist Dragon | 1 | 4 | Dragon | Small | Dragons of Faerûn |
| 90 | 4 | Very young Spiked Sea Serpent | 1 | 4 | Dragon | Medium | Dragon #345 |
| 91 | 4 | Vine Horror | 1 | 4 | Plant | Medium | Fiend Folio |
| 92 | 4 | Vivisector | 1 | 4 | Aberration | Medium | MM5 |
| 93 | 4 | Wererat | 2 | 2 | Humanoid | Medium | MM1 |
| 94 | 4 | Wyrmling Lantern Sea Serpent | 1 | 4 | Dragon | Medium | Dragon #345 |
| 95 | 4 | Wyrmling Spiked Sea Serpent | 2 | 2 | Dragon | Small | Dragon #345 |
| 96 | 4 | Wyrmling Topaz Dragon | 1 | 4 | Dragon | Small | MM2 |
| 97 | 4 | Wyrmling Yellow Dragon | 2 | 2 | Dragon | Tiny | Dragon Compendium - Volume I |
| 98 | 4 | Young Yellow Dragon | 1 | 4 | Dragon | Medium | Dragon Compendium - Volume I |
| 99 | 4 | Yurian | 5 | 1 | Humanoid | Medium | Fiend Folio |
| 100 | 4 | Zern Blade Thrall | 1 | 4 | Humanoid | Large | MM4 |
Photo by Stephen Crowley on Unsplash