This is a W/B vampire themed midrange deck. The goal is to curve out with creatures that are either evasive (Skulk, Flying) or deter your opponent from attacking (Deathtouch, First Strike) with Lifelink putting you at enough of a life advantage to get out of reach of any aggro deck able to come up underneath you.
The best part about the deck is that if you have an aggressive board you can swing in, but if the board is clogged you can durdle for a long time until you can either a) blow out their defenses with removal b) get one of the finisher enchantments or c) slowly drain their life with Drana's Emissary/Cliffwatch Vampire combo.
Always Watching is clutch and is usually enough to put you over the top, especially once you flip your Lone Riders. 1 or 2 5/5 First Strike, Lifelink, Trample, Vigilance creatures is often enough to dominate the board.
The deck's namesake, however, is Campaign of Vengeance. Potentially on curve for a turn 5 win, if you drop this and swing in with 5 creatures and one of them is Cliffhaven Vampire, your opponent is unlikely to come back--even before blockers are declared.
Between Ayli and Indulgent Aristocrat the deck doubles as an aristocrtats lite deck. Keep 1 or 2 mana up and your whole board is effectively immune to removal (well, without you getting value for it).
