Ryan Miller one of the co-designers and brand manager at Ravensburger has said that promo cards will not be mechanically unique
Combine that with a color identity that includes one of the best cEDH colors (black, for tutors), and its no wonder this cards a staple at the highest power levels
If you get both Robin Hoods or just the Archery Contestant, its definitely worth holding on to them
If you do this, it goes onto the battlefield as you'd expect
Job Select An Equipment with Job select simply comes into play with a 1/1 Hero token wielding it (and anyone whos played Phyrexia: All Will Be One will be familiar with this idea)
This card also has a Shift cost of four alongside one ability called You Can Fly!, which gives all your characters Evasive, meaning they cannot be challenged unless the challenging character also has Evasive