You can +1 with him twice, first to Loot 1 (draw, discard)
6 mana is a lot to ask for a mana doubler in the modern day, and while the ability to turn that mana into power is nice, the lack of evasion really hurts this cards ability to serve as a reliable finisher, even with an Urborg, Tomb of Yawgmoth in play

Other printings of Azorius Justiciar $0.36 Azorius Justiciar Return to Ravnica $0.18 Azorius Justiciar Ravnica Remastered $0.17 Azorius Justiciar RNA Guild Kit Most valuable cards in Ravnica: Clue Edition View the full price guide $34.91 Blood Crypt Ravnica: Clue Edition $33.99 Hallowed Fountain Ravnica: Clue Edition $32.94 Steam Vents Ravnica: Clue Edition $31.31 Watery Grave Ravnica: Clue Edition $26.95 Breeding Pool Ravnica: Clue Edition $26.92 Godless Shrine Ravnica: Clue Edition $25.86 Sacred Foundry Ravnica: Clue Edition $25.42 Temple Garden Ravnica: Clue Edition More cards by Chris Rahn $661.37 Mox Opal Kaladesh Inventions $378.00 Crypt Ghast Ravnica Remastered $375.00 Blackblade Reforged The Brothers' War Retro Artifacts $330.00 Aurelia, Exemplar of Justice Ravnica Remastered $254.98 Lodestone Golem The Brothers' War Retro Artifacts $242.18 Lord of the Void Ravnica Remastered $189.81 Tiamat Adventures in the Forgotten Realms Promos $152.54 Crucible of Worlds Kaladesh Inventions Discover Keep browsing SetRavnica: Clue Edition Most valuableTop 100 Magic: The Gathering cards You might also like...

Until next time, Ill see you on the battlefield
Modern Masters 2015 is a 249 card set consisting of reprints of cards originally printed between Eighth Edition and New Phyrexia
Each pack contains 15 Magic cards and 1 foil double-sided token, with a combination of 56 Rare or Mythic Rare cards, 45 Uncommons, and 56 Commons (2 foil etched cards, 11 traditional foils, and 2 nonfoils)