So! I've been reading some folks here talking about how "Linked Batteries does nothing for the B-Wing". And, well. I disagree. First:
QuoteLinked Battery. (2 points)
Small ship only. Limited.
When attacking with a primary weapon or [cannon] secondary weapon, you may reroll 1 attack die.
The B-Wing is currently underperforming because its defense is not capable of standing up to the sorts of punishment that is routine in the modern game. This upgrade won't fix that problem. But it certainly will add an interesting option to the B-Wing, and give them some flexibility in loadout. Rerolls are powerful. They're the rough equivalent of adding a whole extra unmodified die.
To see what this upgrade offers the B-Wing, we should look at what other upgrades allow rerolls. 2 upgrades come to mind: Predator and Fire-Control System (FCS). Predator costs 3 points, takes the Elite Pilot (EPT) slot and offers an offensive reroll- or 2 if the defender if under PS3. FCS costs 2 points, takes the System slot, and offers a Target Lock after you perform an attack. For completeness sake, I'll note that Target Locks can be traded to reroll as many attack dice as the attacker wishes. Generally speaking FCS is considered the best System Slot option in the game.
Interestingly, because the B-Wing has a flexible dial with lots of red maneuvers, the best B-Wing configuration is usually considered to be a Blue Squadron Pilot with Advanced Sensors (3 points). Advanced Sensors allows for a pre-maneuver action, and thus allows the B-Wing to use the entirety of it's dial, safe in the knowledge that it won't be sacrificing its ability to barrel roll or focus. Advanced Sensors, however, requires the System slot and thus keeps Blue Squadron Pilots from equipping FCS, and Blue Squadron pilots cannot take an EPT, and are locked out of Predator.
Which brings us back to Linked Battery. This upgrade takes a slot that the B-Wing doesn't generally use- Cannons - and gives a signifiant advantage. With Linked Battery, the B-Wing will have the System slot open to continue taking Advanced Sensors, or be able to take something like Collision Detector , to get the most out of the B-Wing's barrel roll action.
This is not- by any means- a B-Wing "fix". But this card is certainly an interesting and useful option on a ship that I want to see more of on the table.