Did you know that? (Dominions trivia)

[MaxWilson]

...Agarthan Wet Ones change shape underwater like Mermen?

You probably didn't know that because there's no reason to ever recruit them[1].

-Max

[1] Not *quite* true. They are identical to Pale Ones except they don't have bucklers, which is normally bad, but if you just need a bunch of soldiers to siege a fort that's good because you can recruit twice as many per turn. Normally you wouldn't do that, though, because Agarthan militia are also resource cost 2 and cost only 7 gold instead of 10. But since militia have slightly worse stats than the already-chaffy Wet Ones, and worse Morale, maybe you'd take Wet Ones over militia if you were expecting to come under Fear attacks like from Wailing Winds or the Horror Harmonica, from the fort you're besieging. Maybe.

Aside from that, there's no reason to ever recruit them. Except to look at the pretty underwater graphics.

Edit: no, wait! Wet Ones also get +1 to attack/defense underwater, which means they are superior to Pale Ones for underwater expansion.