Notes
Diabolic Imps have 2 bosses: The Imperor and Minishabaal (not in game anymore).
Abilities
Melee (0-240) (poisons from 8hp), Fireball (100-240), Fire Explosion (300-430), Invisibility (lasts in 1 second), Strong Haste (lasts 2 seconds), Self-Healing (slow, 650-800), Skill Reducer (Reduces your Melee Skills to about 20%-30% for ~2 rounds).
Damage Taken From Elements
Location
Strategy
Since the Melee poisons you, it's better to keep distance as a Mage or Paladin. Knights should try to trap him and use both Melee and Whirlwind Throw or Berserk/Fierce Berserk. Make sure to keep an eye on your Skills so you don't waste lots of Mana on Berserk/Fierce Berserk when it has lowered your skills. Try to corner them because when they use Haste, you cannot outrun them and they may end up luring you into other monsters, as they can be very fast. A good strategy to kill these as a Mage at the Fenrock spawn is to Summon a Fire Devil or another creature immune to Fire Damage and let it block the ranged attacks while you shoot Icicles. Depending on your level you might want to use Magic Shield.
Loot
0-200 gp, Scimitar, 0-2 Blank Rune, Cleaver, Pitchfork, 0-3 Small Amethyst, 0-2 Concentrated Demonic Bloods, Guardian Shield, 0-7 Platinum Coins (semi-rare), Demonic Essence (semi-rare), Stealth Ring (semi-rare), Soul Orb (semi-rare), Double Axe (semi-rare), Necrotic Rod (rare), Magma Monocle (rare), Magma Coat (rare), Death Ring (very rare).