Skills

• Appraise (INT) - helps to buy cheaper and sell more expensive.
• Concentration (CON) -participates in the check against disruption of the cast when receiving damage. Additional concentration bonus = (Bard_lvl + Cleric_lvl + Druid_lvl + Sorcerer + Archmage_lvl + Harper Scout_lvl)/8. Required for Autoquicken spell, Autosilent spell and Epic spells. Counterskill - Taunt. . 
• Discipline (STR) - participates in the check against KnockDown, Disarm, Called Shot.
• Heal (WIS) - added as a value when using a first aid kit to heal. 
• Hide (DEX) - Used to hide from enemies. Counterskill - Spot.
• Intimidate (CHA) - affects the effectiveness when intimidating enemies, increases DC for Barabrian Rage.
• Listen (WIS) - a successful roll detects a hiding enemies. Counterskill - Move Silently.
• Move Silently (DEX) - Allows you to stay in hide while moving. Counterskill - Listen.
• Open Lock (DEX) - needed to open locked doors, maximum DC 50.
• Perform (CHA) - Affects the Bard Song and Curse Song fits. With a value of 110 it enhances spells: Dispel, Balagarn's Iron Horn and War Cry.
• Persuade (CHA) - allows you to recieve the Red Dragon Disciple class with 17 points
• Spot (WIS) - a successful roll reveals the one who has just gone to Hide. 
• Taunt (CON) - with a successful check against the Concentration skill. Additional taunt bonus = (Bard_lvl + BG_lvl + Archmage_lvl + Harper Scout_lvl)/4, the target receives an AC penalty equal to the difference in throws and a spell failure of 10 + (Bard_lvl + Harper Scout_lvl + Archmage_lvl)/2% for 5 rounds. 
• Tumble (DEX) - for every 5 ranks in this skill (base ranks only, not including feat-, dexterity- or item-bonuses) the character's armor class is also improved by +1. Became cross-class for all classes.

Disabled or useless

• Spellcraft
• Bluff
• Craft Armor
• Craft Trap
• Craft Weapon
• Disable Trap
• Lore
• Parry
• Pick Pocket
• Ride
• Search
• Set Trap
• Use Magical Device