I was just going through my various monster sources the other day, and I couldn't find the Lupinal (Guardinal), although I remember seeing the picture somewhere, right next to the Cervidal. Have I gone mad, or are these two converted for 3.x somewhere?
They are in MMII, under "Celestial". To convert to 3.5e, use the conversion document. Also, even though the conversion document does not specifically state it, I would apply all the characteristics of the guardinal subtype to them, in particular, the ability to lay on hands.
