mtg amonkhet masterpiece cards 2017 Magic: The Gathering Series: Invocations Desolation Angel 040/054 Foil CGC 8.5 Double strike Mtg Masterpiece Through the Breach

Not only does he make every Dragon cost less AND give you a card advantage, but he lets you cheat permanents onto the battlefield whenever you attack

Sacrificing treasures deals incremental damage while recurring resources

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

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