Recently, we have noticed that trainers have been scammed by trading away their precious Pokémon for a so-called "Zekrom Egg". We are here to clarify that the Zekrom Egg is a counterfeit. Also, the egg is mostly just a Drilbur Egg.
First, Zekrom Egg is currently not obtainable legitimately.
Second, the REAL Zekrom Egg looks like this:
https://twitter.com/lando64000/status/844830766659919873/photo/1
Once again, please do not fall for trickery and scams, especially when others are offering an awkwardly high value trade.