Which race would you add to Heroes?

Message from celt
We also need a race that hasn't appeared in the Heroes games! For example, an alliance of the seas.
1. Pirates
2. Mermaids
3. Tritons
4. Sea witches
5. Nagas
6. Sea monsters
7. Leviathans

In my opinion, this race is not very feasible, as water elementals can be summoned, and even if we consider its creatures, it's a kind of plagiarism from different castles. But if you look at it from another angle, you can also say that this castle has an advantage. Water vs. Fire – the eternal battle of two elements.