Guild Wars 2

For the wings you need 100x Jorbreaker.
To get 1 Jorbreaker you need 1000x Piece of Zhaitaffy
So in total, to get those wings, you need 100 000x Piece of Zhaitaffy?

Yup. Enjoy the kitten.

You can also get from the Dragon Coffers, and from Dragon Ball (although that might be from a Dragon Coffer reward…if it’s not bugged). Obviously a rare drop from that.

Trading Post is also an option unless the info is wrong.