here's what i have, then:
Leprechaun
Small Fey
Hit Dice: 1d6 (3 hp)
Initiative: +7
Speed: 40 ft (8 squares)
Armor Class: 14 (+1 size, +3 Dex), touch 14, flat-footed 11
Base Attack/Grapple: +0/-6
Attack: Club -1 melee (1d4-2)
Full Attack: Club -1 melee (1d4-2)
Space/Reach: 5 ft/5 ft
Special Attacks: Spell-like abilities
Special Qualities: Damage reduction 5/cold iron, low-light vision, spell resistance 27
Saves: Fort +0, Ref +5, Will +4
Abilities: Str 7, Dex 16, Con 11, Int 16, Wis 15, Cha 16
Skills: Bluff +11, Concentration +4, Craft (any one) +4, Escape Artist +7, Hide +11, Jump +2, Listen +13, Move Silently +7, Perform (comedy) +5, Perform (dance) +5, Perform (sing) +5, Search +5, Sense Motive +6, Sleight of Hand +11, Spot +6
Feats: Alertness (b), Improved Initiative
Environment: Temperate forest and plains
Organization: Solitary, gang (2-4), family (6-11), or clan (12-20)
Challenge Rating: 4
Treasure: Double coins; 50% goods; 50% items
Alignment: Always neutral
Advancement: 2-3 HD (Small)
Level Adjustment: +4
This wee being resembles a small elf, with a nose that comes to a tapered point. It wears brightly colored clothes, pointed shoes, and a wide-brimmed hat. In its teeth is clenched a long-stemmed smoking pipe.
Leprechauns are a faerie folk that frolic in fair, green lands with lush hills and dales, working magic and causing harmless mischief. Rumors persist that the leprechaun is a cross between a pixie and a halfling. Whether this is true or not, no one knows. Leprechauns are fond of flamboyant clothes, and dress in green or gray coats, brown or green breeches and sometimes wear stocking caps. Some males have beards, but most have smooth, child-like faces.
Leprechauns are perhaps best known for their great fondness for gold, which is something that they hoard. They tend to distrust humans and dwarves, who have greedy tendencies, but get along well with elves, gnomes, and halflings. Regardless, a leprechaun will not trust any humanoids enough to bring them to its lair for any reason. Leprechauns enjoy the same sorts of foods that other humanoids eat, and have a great fondness for wine – a weakness that is often used to outwit them.
A leprechaun is about two feet tall, and weighs 30-35 pounds.
Leprechauns speak Sylvan, Common, Elven, Gnome, and Halfling.
COMBAT
Other creatures most commonly encounter leprechauns when one of the mischievous little folk snatches a valuable object from someone, turns invisible, and dashes away. If pursued closely for a long enough time, the leprechaun may eventually drop the stolen goods and flee. When pursued, a leprechaun will not return to its lair.
If a leprechaun is somehow caught or discovered in its lair, it will try to fool the intruder into thinking he is getting the treasure, so that the intruder will leave empty-handed. If an intruder is able to secure the treasure, the leprechaun will bargain and beg to get it back, and use whatever tricks it can think of to get its treasure.
Leprechauns shun combat and will usually turn invisible and flee if threatened. However, leprechauns have a soft spot for weaker creatures, and will not sit idly by while a helpless creature is attacked. When combating a foe, leprechauns take full advantage of their spell-like abilities to drive an opponent away.
Spell-Like Abilities: At will - dancing lights, invisibility (self only), major image, polymorph any object (only polymorphs one object into another object), ventriloquism. Caster level 7th. The save DCs are Charisma-based.
Skills: A leprechaun has a +8 racial bonus on Listen checks, a +4 bonus on Bluff and Sleight of Hand checks, and a +2 racial bonus on Search and Spot checks.
Originally found in the first edition Monster Manual (1977, Gary Gygax), Monstrous Compendium MC2 (1989), and the Monstrous Manual (1993).
what might have worked in 2E (or not worked, really) might not work so well in 3E. i'm cutting the wish part entirely.
