never ever spend that much on any deck, it's not good to spend that much. wait till you get more pieces, decks can be easily ruined with rotation, nerfs, meta changes and you will regret spending 5k dust, consider playing other decks for now.
and it will never be a completely control warlock meta, there are so many counters to that if it gets a lot of popularity and aggro decks stay away for a while, mill rogue is the real winner hear, also tempo mage can win warlocks pretty consistently.
my suggestion is to play another deck, sth cheaper, just think about warlock doesn't stay as tier 1, then Skull of the Man'ari and Prince Taldaram will be useless cards that can't be used any where else. also i think there is already a lot of lists without those 2 legendaries.
Mountain giants may not be necessary after nerfa because thwy were just there tp beat down raza priest and taldaram is optional i would craft the faceless manipulaters they r classic and universally good i actually only ran 1 cube in the last season and finished top 500 legend. Skull is a must though
Whaaaat its super fun you can just imagine thhe look on aggro decks when you pull voidlord on 5 or 6 then faceless it. It looks like a concede and the mirror matches are insane! Its mountain giant chicken I had a ton of fun
I ran a list without Faceless and Prince and it worked well. I often felt that Faceless was just too clunky and Cubes (2x) are good enough to multiply Doomguards. Prince would be a solid addition, but I stay back from crafting it for now and wait for the upcoming meta.
Mountain Giants have always been solid in control variants of Warlock and will be in the meta every now and then.
The skull is mandatory for the deck and the only questionable craft, since we dont know hof rotations or the upcoming meta. I highly doubt Doomguard will be removed from standard though, the cards is pretty balanced.