Interlocking Warshield [Item 3.5 - P.E.A.C.H./W.I.P.]

[Narmy]

THESE SHIELDS ARE ONLY MEANT TO BE USED WHEN YOU'RE APPLYING THE COMBAT FACING SYSTEM TO YOUR GAMES.
http://www.d20srd.org/srd/variant/ad...mbatFacing.htm

The description needs work, I know.

Description: An interlocking warshield can be made in many shapes, but one such shape is that of the yin and yang. One interlocking warshield shaped like a yin would have blades along it's edge. The shield also has a lockable rotation device so that it can be unlocked turned, and then locked into place again. This serves in helped to properly combine an interlocking warshield with its counterpart. When two interlocking warshields are combined to form one, it functions as a single, larger shield. The sheer weight of which when combined is capable of inflicting more damage.

Exotic Weapons

Light Interlocking WarShield (Steel)
Cost: 159 Gold
Damage: 1d4 Slashing, x2 (x3 when interlocked)
Independent AC: +1
Interlocked AC: +2
ACP: -1
Interlocked ACP: -3
ASF: 5% Per
Interlocked ASF: 10%
Weight: 8 lbs.
Interlocked Weight: 16 lbs

Special Ability
Interlock
An interlocking warshield is so crafted that it can be locked together in formation with another interlocking warshield of the same size and type. By interlocking the warshields they form a single shield, this interlocked shield is a bit bigger than a shield one size category larger than. A pair of Interlocked Warshields functions as one shield, and one weapon.

Interlocking a pair of Warshields can be done as a standard action.
If you have a Base Attack bonus of +6 interlocking a pair of warshields is only a move action.


Heavy Interlocking Warshield (Steel)
Cost: 170 Gold
Damage: 1d8 Slashing, x2 (x3 when Interlocked)
Independent AC: +2
Interlocked AC: +4
Interlocked Max Dex: +1
ACP: -2
Interlocked ACP: -5
ASF: 15%
Interlocked ASF: 30%
Weight: 19 lbs.
Interlocked Weight: 38 lbs.

Special Ability
Interlock
An interlocking warshield is so crafted that it can be locked together in formation with another interlocking warshield of the same size and type. By interlocking the warshields they form a single shield, this interlocked shield is a bit bigger than a shield one size category larger than. A pair of Interlocked Warshields functions as one shield, and one weapon.

Interlocking a pair of Warshields can be done as a standard action.
If you have a Base Attack bonus of +6 interlocking a pair of warshields is only a move action.
--------------------------

WHEN INTERLOCKED

The Damage stays the same, but the critical increases to x3
Use the Interlocked AC
ACP is doubled, and increased by one. (I.E.) -1 ACP becomes -3 TOTAL, meaning two light shields into one interlocked, has a total ACP of -3
Spell fail doubles Same rules as above --->
Weight Doubles. Same Rues as above --->

Does this item sound balanced, what can be done to balance it. Is it perhaps hopeless?

How would one go about masterwork versions and enhancement bonuses from magic.

Would they apply to both to hit, and armor rolls/bonuses. Like following?

Any masterwork version of an Interlocking Warshield is granted both a +1 Enhancement bonus to attack rolls, and it's ACP is lessened by 1.