Instructions
Go to Port Sarim and speak to the Squire. He will transport you to the Void Knight's Outpost. Ask to play "Conquest," wait for an opponent and select your team from a series of Scouts, Soldiers, Halberdiers, Archers and Champions. You can have a team of as many units as you want as long as they don't exceed the point limit of 1000.
Gain a rank of 1250, which takes about 10 straight wins. Conquest plays and is ranked much like Chess, so winning against higher ranked players accumulates rank faster. Completing Conquest at Void Knight Outpost, like Pest Control, also gives you Void Knight Commendation points. Accumulate 150 Void Knight Commendation points.
Claim the Void Knight Deflector by going to the Void Knight Outpost Quartermaster and redeeming your 150 commendation points for this powerful tower shield.