D&D Random Encounters for 5E - Underwater

Encounters might be a meeting with a patrol of guards at an old shrine or a familiar looking for aid. It might be an ambush in the wilderness, a stand-off in the city or a monster in the Underdark.
Encounters underwater bring visions of murky seas, vast reefs and dark depths. They might occur in a kelp bed, an underwater cave or by a long-forgotten shipwreck

tools for - dnd5e encounters underwater

level: party size: terrain: sources: type:

combat

1 Sea Hag

At a whale skeleton (many coloured lights are in the area)
They are curious about a nearby light source
In a fight they focus on anyone with religious icons
Difficulty... 450 Deadly

combat

5 Merfolk

At a decaying kelp bed (there is a patch of sea anemones)
They are gathering shells
In a fight they focus on the foe that stands out most
Possibly... during the fight an elemental is summoned by the next spell
Difficulty... 250 Medium

combatsahuagin

1 Sahuagin Priestess (Monster Manual p.264) named Longblade

At a patch of sea grass surrounded by sea grass (someone has left an anchor)
They are gathering small sea creatures
In a fight they retreat carefully if it goes badly
Possibly... during the fight liquid spills from somewhere
Difficulty... 450 Deadly

combatseamonster

1 Merrow

At a hidden trench by a hidden cairn (close by is a cage on a chain)
They are are patrolling the area
In a fight they use ranged attacks and try to keep in cover
Possibly... they have 1d4 Potions of Water Breathing
Difficulty... 450 Deadly

combat

1 Sea Hag

At a shell-covered rock and a patch of damaged seaweed (there are several large red sea mushrooms)
They are making underwater art
In a fight they focus on any obvious spellcaster
Difficulty... 450 Deadly