D&D General Suggest to me a dangerous sea monster from any edition

[Paul Farquhar]

Storm giant.

 

[pemerton]

Maybe a Typhoon Dragon (Tun Mi Lung) or similar?

A dragon turtle shouldn't really be summoned from the depths. A typical sea serpent might be, if I want to create a more powerful version. Giants and such are too easy to negotiate with. A kraken seems too dangerous, and I'm still not sure the "young kraken" idea works for the kraken lore I'm leaning towards. The 2e (whale) leviathan is a good guy that shouldn't behave in this manner.

The way I'm thinking it makes sense that a typhoon dragon might be summoned from the depths is if the conjured storm disturbs it in its palace at the bottom of the ocean. Though that would make it a side effect of the spell, and I'm not sure if you need its summoning to be intentional (and under the control of the summoner?).

If it is meant to be deliberately summoned, and under the summoner's control, does some sort of water elemental fit the bill? (There are lots of them, at various levels of power, across the editions of the game.)

 

[Davy Greenwind]

The Sea Dragon from Tome of Beasts 1 (Kobold Press) is pretty cool if you are in to third party. The Morkoth from MPMM is also cool

 

[Paul Farquhar]

A lot depends on if the summoning is intentional and controlled or not. There are a great many sea monsters who would be attracted by a magical storm without being directly summoned.

Or go classical - an archfey/air elemental called Ariel.

 

[Paul Farquhar]

Is this something the party are expected to fight or not? If it’s role is purely narrative, you want something far to powerful for the PCs to fight - they survive because it’s not interested in them.

If it’s near the PCs in power, it really only ends two ways - the PCs kill it or it kills them.