Jett's Core Aura is glitchy

The real problem is:
Why would anyone play a Jett if it's that expensive?

It's not really that expensive at all. Only when there's glitches around there's a problem.
When Jett's first came out I used only $20 to get it to 19 W.Atk (rest were low stats)
I had a hiatus awhile and recently came back.

And again I've only spent $20 to get it to 18 Atk / 15 luk / 16 dex / 12 str
And out of that $20 also locked the stats for 3 months.