Its an endless army in a can for Aggro or Aristocrats decks, in a similar vein to Bitterblossom
Ad Nauseam (Shards of Alara) This man works far too hard You might have heard of Ad Nauseam because its a combo in Modern that basically means you end up sat there while your opponent spends five minutes deciding whether or not youre dead yet
While he can certainly perform admirably within the context of this precon, I believe that youll probably get more mileage out of this deck by replacing Szarekh, the Silent King with one of the other commanders if you plan to upgrade this deck to play in higher power tables
For me playing this card, its almost always likely to be the former
Refuse // Cooperate Izzet commanders focusing on instant and sorcery spells like Sevinne, the Chronoplasm and Rootha, Mercurial Artist will Refuse // Cooperate with this card in their build
0079_MTGMB2_WhiteRep: Comet, Stellar Pup 0002_MTGMB2_Playtest: Kozilek, Compleated 0122_MTGMB2_Fut_Reg: Future Sight Attendees of Gen Con got to be the first to experience Mystery Booster 2