A 1556 No.
A 1558
The LA is given in FREE D&DŽ V.3.5 ACCESSORY UPDATE: Monster Manual II on page 10. Download that update booklet here.
A 1559 Yes.While wielding a melee weapon (including one created by a spell effect), you threaten all squares you can reach with it.This effect gives you a natural reach of 20 feet.