-enemy magis resistance

[Diabloevenger]

How do i go about getting this???? im interested in making a new kind of character but i want to make sure my magic pierce is covered

[Istaryu]

How do i go about getting this???? im interested in making a new kind of character but i want to make sure my magic pierce is covered

There is no magic pierce on items for a reason. Enemies dont have high magic res unlike elemental resists.

[Johnny Impak]

Staff of herding or the Doom skill of the assassin. Magic damage is made to be more or less dealing fixed damage. Therefore sources of pierce/resistance are harder to come by.

[DougSchneider]

Herdsman or assassin's Doom skill. The magic damage dealt more or less deals fixed damage. Hence, a source of penetration/resistance is more unlikely.
instructions at modilimitado

[Siosilvar]

There are a grand total of two items that reduce enemy magic resistance.

Despondence

Despondence
Despondence
Voidforged Staff
Two-Hand Damage: 13 to 16
Required Level: 125
Item Level: 110
Nearby enemies lose 10% Magic and Elemental resistances
+30% to Spell Damage
+1 to Vindicate
+20 to Voidstar
+(600 to 1000) to Life
Lightning Resist -100%

, from Samael.

Bitter Harvest

Bitter Harvest
Scythe (Sacred)
Two-Hand Damage: (127 - 159) to (175 - 219)
(Necromancer Only)
Required Level: 100
Required Strength: 466
Required Dexterity: 466
Item Level: 105
Dexterity Damage Bonus: (0.15 per Dexterity)%
Adds (60 to 80)% of Dexerity as Magic Damage to Weapon
15% Chance to cast level 7 Starfire on Melee Attack
+(140 to 200)% Enhanced Damage
Maximum Fire Resist +(0 to 2)%
Maximum Lightning Resist +(0 to 2)%
Maximum Cold Resist +(0 to 2)%
Maximum Poison Resist +(0 to 2)%
Physical Resist (1 to 10)%
+200 Life on Melee Attack
Socketed (6)

, which sucks.