Converting monsters from Second Edition Monstrous Compendiums

[Shade]

On first glance, you might be thinking "aren't these the sea drakes in Fiend Folio"? But these fellows start out smaller, have different abilities, and are less intelligent.

 

[demiurge1138]

So, how are we going to handle the advancement, if they only get swallow whole when they age? Have a sea wyrm and an elder sea wyrm stat block?

 

[Shade]

Good point. That would probably be the most DM-friendly solution.

 

[freyar]

They only get the breath weapon later, also. Two stat blocks definitely seems the way to go.

 

[demiurge1138]

Totally two stat blocks.

 

[Shade]

Shall we start with the smaller one?

Other Large "sea serpents"...

Crested Sea Serpent: Str 17-23, Dex 14, Con 17-21, Int 8-10, Wis 13-15, Cha 16-18

Lantern Sea Serpent: Str 17-23, Dex 10, Con 17-21, Int 14-16, Wis 15-17, Cha 14-16

Spiked Sea Serpent: Str 17-25, Dex 12, Con 19-21, Int 6-8, Wis 15-17, Cha 14-16

Dragon Eel: Str 26, Dex 11, Con 21, Int 8, Wis 12, Cha 13

 

[demiurge1138]

Str 21, Dex 14, Con 20?

 

[Shade]

Sounds good.

Int 7, Wis 16, Cha 15?

 

[freyar]

Sounds good, assuming we're talking about the younger version. 7HD still?

 

[Shade]

Young version is correct.

The various sea serpents reach Large at 10-12 HD. The dragon eel is 14 HD.

I could see bumping it up to 10 HD, but 8 HD might still work.