Youll be more likely to spot an anomaly, such as the wrong expansion symbol color or a misplaced set icon, which counterfeiters might overlook when creating a fake card
Or at least a heavily warped version of it
If you want to include Atraxa, Grand Unifier, just make sure your deck has a wide variety of card types, and that your color identity can support it, of course
There are certainly better storm commanders, but this elemental dinosaur puts a unique spin on things thats worth looking at if you dont want a deck thats automatically seen as a threat
(The following pictures are taken from Mythic Spoiler)
Number 255 Language English Legal Formats Commander, Legacy, Pauper, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Modern, Pioneer, Standard, Timeless Rulings (10/4/2004) You can pay the "reveal your hand" cost even if your hand is already revealed due to another effect