Common trait to all liches is their innate immunity to normal weapons. immunity to all spells of level five or lower and high magic resistance.
Being formidable spellcasters, liches have access to level 9 spells and typically open battles with Protection from Magical Weapons, Stoneskin and Spell Trap to make themselves nigh-invisible. They can also cast powerful crowd control spells like Time Stop, Symbol, Stun and Symbol, Fear.
Most liches in the game have unique and distinctive names:
- Neveziah - this undead, encountered during Edwin's quest, is referred to as a "lich" in dialogue, but is actually quite weak and bears none of the other liches "treadmark abilities". He lurks in the Lower Tombs in the Graveyard District.
- Shangalar, a member of the Twisted Rune, hidden behind a magical doorway at the docks.
- Deirex, the resident of Deirex's Tower in Ust Natha.
- Lagole Gon - Deril's aide during the final confrontation in Deril Estate in Athkatla Government. This encounter is part of Cernd's personal quest.
- Odamaron - a lich in Sendai's Enclave, in a room that includes the Eye of Tyr, the Skull of the Lich, and the Heart of the Damned.
- Vongoethe is a lich in Cave of the Dead in Amkethran who has a personal feud with Marlowe.
Other Unnamed LichesEdit
There is a lich in The Cult of the Unseeing Eye in the Athkatla Sewers. This one is linked to the Restore Kangaxx's Body quest. Also, the other lich linked to the Kangaxx quest is in Delosar's Inn in the Athkatla Bridge behind a trapped door.
Another lich is located at the Crooked Crane Inn at the Athkatla City Gates. At least two are present in the ruined temple of Amaunator. They are accompanied by two Skeleton Warriors and two Greater Mummies. One is in the room right after the room with the central lava pit. Some more are encountered in Watcher's Keep.
Liches are fond of using Disintegrate, Imprisonment, Power Words and Symbols. Counter these spells by using Death Ward and Spell Immunity: Alteration (stops Disintegration), Conjuration (stops Power Words and Symbols) and Abjuration (stops Imprisonment, as well as Breach and Remove Magic, which they tend to use to make your party more vulnerable), and Protection from Undead
Getting past the lich's defenses is hard, as it will be immune to Breach, Lower Resistance, Greater Malison, Dispel Magic and Remove Magic. Players should use Pierce Magic, Pierce Shield and Ruby Ray of Reversal to get rid of the spell protections and lower its Magic Resistance instead. Removing the combat protections via a spell is impossible, however, as there is no high-level equivalent of breach. Instead, the party should rely on Arrow of Dispelling or Carsomyr (which has a dispel magic on hit) for the combat protections that these individuals will have. Additionally being a + 5 weapon, Carsomyr is unaffected by spells such as Improved Mantle.
In Baldur's Gate 2, an Inquisitor's Dispel Magic (which is considered a special ability and not a spell) works on liches and is often enough to undo most of the protections afforded by the initial spells casted by a Lich.
The Level 7 Clerical spell Sunray is effective against liches, dealing (LVL)*d6 damage to undead and forces them to save or be destroyed. As an AoE spell sunray is not affected by their MR. Other, less useful damaging spells, include Sol's Searing Orb, False Dawn and Bolt of Glory.