Skill Changes

Skill	Arkhalia change
Appraise	Skill disabled.
Craft Armor	Skill disabled.
Craft Trap	Skill disabled.
Craft Weapon	Skill disabled.
Disable Trap	Only Rogues can disarm traps with DC 36 or higher. Other classes can recover such traps at +10 DC, but cannot disarm them even if their Disable Trap roll beats the listed DC. It's not the Arkhalia custom rule - it's a vanilla rule, but on Arkhalia, higher DC traps are common, and most players meet it for the first time here.
Heal	Healer's kits do not restore hit points. They can cure poison, disease, and bleeding, and help dying party members. Every 5 ranks in Heal increases healing from refillable potions by 1%.
Pick Pocket	Only gold can be stolen from player characters. Items can be stolen only from NPCs.
Set Trap	Setting a trap takes 1.5 seconds instead of 4.5 seconds.
Use Magic Device	The scroll activation DC is 7 + (3 * spell level), where spell level is 0-9.