Basic Magical Item Costs

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Magical Weapons
300 (masterwork) + cost of weapon + cost of material
+1 = 2000
+2 = 8000
+3 = 18000
+4 = 32000
+5 = 50000
(deflection and natural armour bonus items use the same cost chart as weapons)

Magical Armour
150 (masterwork) + cost of armour + cost of material
+1 = 1000
+2 = 4000
+3 = 9000
+4 = 16000
+5 = 25000
(resistance bonus to all saves items use the same cost chart as armour)

Bonus to Stat (enhancement)
+2 = 4000
+4 = 16000
+6 = 32000

Bonus to Skill (competence)
+2 = 100
+5 = 2500
+10 = 10000

Damage Reduction (specific type needed to penetrate)
3/ Bludgeoning, Slashing or Piercing = 9000
3/ Specific Alignment or Material = 15000

Energy Resistance (per type)
10 per hit = 12000
20 per hit = 28000
30 per hit = 44000