https://youtu.be/YF--ytWn8mU
How is this any different than scamming old people out of their money over the phone? How on earth do people call this the free market at work? They are deliberately deceiving people to think you can get tradable legendary gems from legendary crests. But the only tradable ones come from eternal legendary crests that look pretty much the same.
When you start an elder rift, there are only two slots. A slot for the rare crests and one for legendary crests. This is part of the deception. They intentionally make the legendary and the elder legendaries appear the same. This is obviously completely deliberate and just one of the many deceptions this game invokes to frustrate you into paying money. Much like the hidden caps on item drops. They don’t tell you this.