Charge away 10 squares (max 25 squares), deal 14.5/24/32.5 push 5 and slow (no attack roll). And still use our move (run further) and minor (wizard fury / quickened spellcasting).
The core trick...
1) Round About Charge (rogue, 11, acrobatics). Each square need not be closer.
2) Reapers Touch (shardar-kai). Gives you an MBA with range (20).
3*) Magic Missile. Magic missle is gaurnteed, and close enough to stat independant.
*Works with other powers (Dragonfrost has a yummy push 1), but this is focusing on MM build, so we don't have to worry about "hitting".
PP: Daring Acrobat
ED: Archmange (Archspell = Wizard's Fury)
Stat's really don't matter, as Int only adds a bit of damage, and we can always slap on scale.
1: Reaper's Touch
2: Hybrid Talent (armor)
4: Fast Runner
6: Shield Push
8: Powerful Charge
10: Twilight Adpet
11: Roundabout Charge
12: Hindering Shield
14: Repel Charge
16: Nible Runner
18: Far Spell
21: Quickened Spellcasting (magic missile)
Master's Wand of Magic Missile.
Badge of the Beserker.
Ring of Ramming (x2)
Any other way to boost..
1) Effects (prone?)
2) Extra attacks (polearm gamble?)