Flame Fetish (4e Optimized Character Build)
From D&D Wiki
This is a Wizard optimization designed for one purpose. Burning everything in sight.
Player's Handbook, Player's Handbook 3, Arcane Power, Forgotten Realm Player's Guide, Adventurer's Vault and numerous Dragon Magazine publications.
 Game Rule Components
Flame Cinder Wand, Magic Dagger
Starting Ability Scores (Before Racial Adjustments): Str 16, Con 8, Dex 11, Int 17, Wis 10, Cha 10
Race (Templates): Firesoul Genasi are mandatory for this build.
Starting Racial Traits: Elemental Manifestation, Elemental Origins, Firesoul
Level 1: Firepulse Master
Level 2: Genasi Fire Affinity
Level 4: Burn Everything
Level 6: Elemental Empowerment
Level 8: Stoking the Fire
Level 10: Sympathy of Flame
Level 11: Versatile Expertise
Level 12: White Lotus Riposte
Level 14: White Lotus Master Riposte
Level 16: Dual Implement Spellcaster
Level 18: War Wizardry
Level 20: Superior Implement Training (Cinder wand)
Level 21: Irresistible Flame
 Other Components
Choosing strictly fire based powers is recommended as other powers will not benefit from the build.
This build essentially ignores all resist and immunity to fire, as well as adding large damage bonuses to all fire attacks. The feats "Burn Everything" and "Irresistible Flame" effectively reduce all fire immunity to 0. Elemental empowerment adds a STR bonus to all elemental attacks. Using a Flame Cinder Wand in conjunction with an off hand implement (The magic dagger is the most cost-effective as only the modifier is added) will give another hefty damage bonus with the "Dual Implement Spellcaster" feat. Feats such as "Stoking the Fire" and "Sympathy of Flame" add conditional bonuses that work with fire attacks. Depending on the level of magic items used you can easily inflict a base damage of 33. Not to mention the "Fire Sigil" utility at level 22.
 Munchkin-Size Me
The "Wildfire Genasi" Paragon Path and "Draconic Incarnation" Epic Destiny also give you desirable flame-related bonuses and ability score bonuses. Other feats such as "Surging Flame" or other non-flame feats such as "Spell Accuracy".
 Side Notes
It can be fun to maximize the fire theme of this build with other items and feats.
This is a strictly offensive build, don't get hit. This build is also designed for epic level campaigns and may not work well as a lower level character.