Phantom Breaker Battle Grounds Overdrive (PS4) disappeared from the store shortly after being discounted as part of this week's deals (EU).

I can find phantom break but not azure. Pretty weird and stupid, this is why physical media is so important

That's probably the Vita version. It's still there, but PS4 isn't.

Works for me (Germany): https://store.playstation.com/#!/de-de/spiel/phantom-breaker-battle-grounds-over-drive/cid=EP0745-CUSA02665_00-PBBG0APPLICATION

I can see it on the AU /NZ store and we share the same store as EU.

https://store.playstation.com/#!/en-au/games/phantom-breaker-battle-grounds-over-drive/cid=EP0745-CUSA02665_00-PBBG0APPLICATION

Used psprices to quickly access different stores of EU countries
Seems Phantom is available in many but not all
While Nights did go missing from all of them, or at least i haven't yet found a country that has it

In a digital-game future, we're going to have to get used to games disappearing and no one being able to buy it again.