As far as which one to take
In this Commander pre-constructed deck, you receive: One face Commander with borderless art and a foil finish Five additional Commanders with borderless art and a foil finish 94 non-foil cards Ten double-sided tokens or punch-out counters A deck box This confirms the inclusion of six total Commanders, but only one, Leonardo, the Balance, is considered the face Commander , which is the card the rest of the deck is designed around, even if any of the other legendary creatures can legally lead the deck instead
Number 215 Language English Legal Formats Commander, Legacy, Modern, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Pauper, Pioneer, Standard, Timeless Rulings (10/1/2009) You don't choose the exiled cards until Mirror of Fate's ability resolves
So far it has been the right choice
However, you werent likely to see Ikra Shidiqi, the Usurper paired with Vial Smasher the Fierce