practical and advanced weapon and armor enchantments

traditional speaking, most game Arms and Armor (A&A) enchantments tend to be simple in that they provide either defensive or offensive bonuses (some with elemental effects as well). Now what i'm suggesting is not more variety or more complexity but something more practical (or impractical depending on your interpritation).

first have any of you guys heard of "journey to the west". basically, it is about a mystical chinese monkey named Sun Wukong (i think... it's one of his names) or the Monkey King. Anyway he wields a magic staff that can change it's length, diameter, mass from as tiny as a needle to, well, as massive as the Empire State Building. I'm using this example to give you guys an idea of a theory i have in which a pike and a simple ball mace are fused into one weapon where all the wielder has to is command the weapon's shaft to either extend outwards for a pike formation or shorten back for melee. think of the versatility and effectiveness an army of guys wielding this weapon (which i affectinately called a War Lance).

Another enchantment that would be sweet is something along the same line as the Protoss plasma shields. you know, a magical shield that acts like a mix between additional body armor and extra hit points that regenerate over time. A very handy enchantment for your elite troops to have.

And my third enchantment idea is something like Aengis Fang form the Icewind Dale Trilogy. A melee weapon that is not only throwable but will also return to it's wielder. Talk about causing a few WTF moments when foe's troops charge head on at your unit of Hammermen as your men thrower their returnable hammers at the incoming enemy force.

Okay i know there are some balance issues with these three enchantment (and they should more likely be seen in late game). But these imbalance can be easily resolved by the traditional factors of TMR (time, money and resources).

Well what do guys think? got any other enchantment ideas that we shoot around.