From Diablo Wiki
Magic Missile is an active attack spell in the Wizard's Arcane Skill Tree. The 'Magic Missile' spell fires missile(s) of energy at your enemies causing arcane damage to them. Critical hits from arcane damage silence targets for a short time.
The information below is based on the playable demo build at BlizzCon 2008. It is likely that there will be more than one rank of this spell in the final version, and is subject to all kinds of reviews, changes, and balancing before then.
There are no prerequisites for this skill.
|Silence Duration||4 sec|
|Number of Missile(s)||1|
|Arcane Damage||Increases arcane damage dealt|
|Efficient Magics||Reduces mana cost|
|Penetrating Spells||Reduces enemy arcane resistances|
|Arcane Weakness||Extends duration of arcane damage|
|Arcane Speed||Reduces cooldown|
|Arcane Distortion||Slows affected opponents|
|Improved Magic Missile||Increases the number of missiles and damage dealt|
|Mana Burst||Increases the damage dealt if mana is full when casting|
|Spell Speed||Increases projectile speed|
|Conjured Power||Increases damage based on caster's vitality.|
|Magical Impact||Increases damage based on equipped weapon damage.|
|Lightning Speed||Increases casting speed|
|Lethal Energy||Increases chances of critical hit|
Skill Rune effects
|Hydra Rune||Increases number of projectiles|
|Viper Rune||Increases chance of critical hit|
|Power Rune||Increases damage|
In early levels, Magic Missile might be the Wizard's bread and butter. In later levels, it might prove invaluable as a cheap and direct means of silencing a monster for 4 seconds -- plenty of time to dispatch of them before they can cast a nasty spell on you, or raise the fallen to fight again. The difficulty will be in hitting the shaman behind the minions, since Magic Missile will strike another monster if it's between the Wizard and the targeted boss.
Magic Missile's effectiveness is increased by a variety of spells, the most noteworthy of which is Improved Magic Missile, which increases both the damage and number of missiles released on a cast. The range and spread of higher levels of Magic Missile is reminiscent of the Diablo II Necromancer's Teeth. When an enemy dies at the hands of an Arcane spell, a purple glow is left on the corpse.