The ratwere is fine, please post the stats!
Bestiary of the Realms is a fan conversion, true, but the "fans" in question (Eric Boyd and Thomas Costa) have both written FR books for WotC. I don't feel a pressing need to convert things they've done and will happily save those for later until after we've done the truly unconverted beasties. OTOH, @Echohawk probably wants to know about the critters he's missed.
Rules Cyclopedia (1991) said:Lycanthrope - Wererat*
Armor Class: 7 (9) †
Hit Dice: 3*(M)
Move: 120’ (40’)
Attacks: 1 bite or weapon
Damage: 1d4 or by weapon
No. Appearing: 1d8 (2d8)
Save As: F3
Treasure Type: C
XP Value: 50
† The number in parentheses is the creature’s armor class when in human form.
Wererat: Wererats are different from most lycanthropes because the were-animal form is their natural form, and human form is the shape they assume. They are intelligent, can speak Common in either form, and can use any weapon. A wererat usually prefers to use a man-sized rat form, but can become a full-sized human. Wererats are sneaky and often set ambushes, surprising on a roll of 1-4 (on 1d6). They summon giant rats to help them in battle. Only a wererat’s bite causes lycanthropy.
Rules Cyclopedia (1991) said:Monster Type: Monster, Enchanted (Common).
Lycanthropes are humans who can change into beasts (or in the case of wererats, beasts who can change into humans). They normally wear no armor, since it would interfere with their shapechanging. Any lycanthrope can summon 1d2 normal animals of its type: werebears can summon normal bears, werewolves can summon normal wolves, and so forth. Summoned animals will arrive in 1d4 rounds.
Some animals (such as horses) do not like the smell of lycanthropes and will react with fear. If a lycanthrope is hit by wolfsbane, it must make a saving throw vs. poison or run away in fear. The sprig of wolfsbane must be swung or thrown as a weapon, using normal combat procedures. A lycanthrope returns to its “normal” form when killed.
Animal Form: In animal form, a lycanthrope can be harmed only by magical weapons, silvered weapons, or spells. The lycanthrope cannot speak normal languages, though it can speak with normal animals of its weretype.
Human Form: In human form, a lycanthrope often looks somewhat like its wereform. Wererats have longer noses, werebears are hairy, werebats have long arms, werefoxes are sly and nimble, and so forth. In this form, they can be attacked with normal weapons, and they may speak any known languages.
Lycanthropy: Lycanthropy is a disease. Any human character who loses more than half of his hit points in battle with a lycanthrope becomes a lycanthrope of the same type in 2d12 days. The disease kills demihumans. The victim begins to show signs of the disease in half that time. The condition can be cured only by a cleric of 11th level or greater, who will do so for a suitable price or service. Any character who becomes a full lycanthrope will become an NPC, to be run by the DM only.
Night Howlers (1991) said:The Man-Rat
In addition to their human and giant rat forms, newly-infected lesser wererats gain an intermediate form much like the beast-man forms of other lycanthropes. This “man-rat” form has the head and body of a man-sized rat, with the ability to stand upright and use its front paws like hands (with Dexterity penalized by –2 for tasks involving manual dexterity). Its ability scores are based on the wererat’s normal (rat) form.
A man-rat can use any weapon a human fighter can use, but attacks as a monster of his current HD (not as a human). Man-rats are unable to cast spells, but can use any general skills they know in rat or human form. Lesser wererats never master the true beast-man form.
Yes, let's finish these, then consider if the weredragon is different than the song dragon (I have a vague feeling they are supposed to be the same), and then look at the others.
Anyway, on to the ratwere. I guess we should give them a hybrid form. I'm not entirely sure what to do about the lycanthropy; since these transferred standard lycanthropy in 1e, I think they probably ought to now also. But I'm intrigued by the "man-sized" rat form, which is larger than a dire rat. I think we should do something with that.
I like that well enough, but it would be nice if there were omissions or additions to the special abilities to distinguish them from wererats a bit more. I'm not seeing much to work with in the original monster, though.
We could mess around with the plague/curse of lycanthropy, I guess, but I'm not sure I like killing non-human humanoids necessarily.
Incidentally, I've discovered there are a few Lycanthropes from the Ravenloft supplement Children of the Night: Werebeasts that aren't in Echohawk's list, together with some other lycanthropes that don't appear to have official conversions, namely:
Catwere, Weredog, Werecobra, Weredolphin, Weredragon, Weregorilla, Weremole, Wereowl, Werepanther, Werespider.
[MENTION=9849]Echohawk[/MENTION] probably wants to know about the critters he's missed.