Locked

[Sceazikua]

Their price usually go up when new items, like arcane/mythic pet, are added

They go up at new expansion

They go up during double odds

When there is an event with locked crates involved... the price rises, be sure of that.

Not always, as that's also the time hoarders release their bulks of lockeds, so price may not change much. People are also not really interested in lockeds now, so it's very uncertain