Robe of the Archmagi: This normal-appearing garment can be white (01–45 on d%, good alignment), gray (46–75, neither good nor evil alignment), or black (76–100, evil alignment). Its wearer, if an arcane spellcaster, gains the following powers.
• +5 armor bonus to AC.
• Spell resistance 18.
• +4 resistance bonus on all saving throws.
• +2 enhancement bonus on caster level checks made to overcome spell resistance.
Archmagi robe只加穿透SR时候的CL,实际CL没有提升