OG Vision deal

I just got 5 star Warlock and I need the vision (or Ultron) synergy to tackle 6.2.2 Mister Sinister boss. Is the 1500 units for 5 star OG Vision something that happens every year or was it a one time thing?
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He is super useful though, mine is now 5/65 sig 200, makes for a good defender and was invaluable for V1 exploration.
But that’s a side tour of this topic.
CMM is also an option, or Hyperion. Will cost you a couple of revives, but that may be worth it to get a completion run done.