Magical mythological creatures, Qilin (or kirin in Korean and Japanese) are always lawful & good. They resemble unicorns and may be related.
They are powerful spellcasters, and roam the skies looking for good deeds to reward, and malefactors to punish. It has a head like a dragon, antlers of a deer or other horned beast, scales like a fish and hooves like of an ox. Its tail is like a lion’s with scales. It legs are sometimes ablaze with magical fire! Seeing a Qilin is a good omen. If attacked it can shoot fire from its mouth, but can also be so gentle as to be able to walk upon water.
In D&D, the ki-rin first appeared in the original Dungeons & Dragons game supplement Eldritch Wizardry (1976) and then in the 1977 Monster Manual.