Guild Ranks
2 level: Cutthroat
7 level: Hunter
11 level: Stalker
16 level: Executioner
Cult Master: Master Assassin

Guild Items
2 level: Hovering Mist-Perception Bonus
7 level: Creeping Shadows-Shadow Bonus
11 level: Eel Skin boots-Evasion Bonus
16 level: The Night Blade
Cult Master: ?

Guild Skills
7 Level: Shadow
11 Level: Backstab

Guild Abilities
2 Level: Quick Heal
7 Level: Quick Attack
16 Level: Quick Skill

Imps Strength
High evade and parry, hide, sneak and backstab

Imps Weakness
Armor restrictions, and Imps are basically weak creatures.

Main Guild Stats
Str/Dex/Agil/Wis

Equipment
Armor Restriction 2
Imps are able to wear the studded leather items but chain and
plate items are just too big and bulky for your stature.
Weapons: Faster weapons are best. The bigger the weapon, the more
fatigue will go down, even if you have a 20 str.

The Night Blades are the assassins of the Imp class. The other guild can kill just as well as as the Nightblades, just that the Nightblades get "Shadow" as a guild ability. Also, the Nightblades have a small advantage over the Shadow Walkers in leveling because of the Quick Attack they receive at level 7.

Guild Ranks
Level 2: Shadow Swindler
Level 7: Shadow Spy
Level 11: Shadow Thief
Level 16: Shadow Assassin
Cult Master: Shadow Master

Guild Items
Level 2: Cloak of Blending
Level 7: Shadow Gloves
Level 11: Boots of Stealth
Level 16: Shadow Hood
Cult Master: The Dark Blade

Guild Skills
Level 7: Steal
Level 11: Backstab

Guild Abilities
Level 2: Quick Skill
Level 11: Quick Attack, Quick Heal

Main Guild Stats
Str/con/dex/agil

Guild Strenth
The ability to steal (or pick pockets)

Guild Weakness
weakness to poison and bleed

Equipment
Armor Restriction 2
Imps are able to wear the studded leather items but chain and
plate items are just too big and bulky for your stature.
Weapons: Faster weapons are best. The bigger the weapon, the more
fatigue will go down, even if you have a 20 str.

Like I said above, The Shadow Walkers are the thiefs of the imp guilds. They are just as good as the Night Blade guild in PKing, But excell in pick pocketing.

Now here's some tips from the Imps themselves.

Tips from Pain
Make alot of friends, and if you don't want to be a low guy/gal forever do not spend so much time socializing as a low level.