Murders at Karlov Manor

Anzrag, the Quake-Mole | Legendary Creature | Mole God | Whenever Anzrag, the Quake-Mole becomes blocked, untap each creature you control. After this combat phase, there is an additional combat phase. {3}{R}{R}{G}{G}: Anzrag must be blocked each combat this turn if able. | Helge C. Balzer

Break Out | Sorcery | | Look at the top six cards of your library. You may reveal a creature card from among them. If that card has mana value 2 or less, you may put it onto the battlefield and it gains haste until end of turn. If you didn't put the revealed card onto the battlefield this way, put it into your hand. Put the rest on the bottom of your library in a random order. | Daniel Correia

Riftburst Hellion | Creature | Hellion | Reach Disguise {4}{R/G}{R/G} (You may cast this card face down for {3} as a 2/2 creature with ward {2}. Turn it face up any time for its disguise cost.) | Brent Hollowell

Tin Street Gossip | Creature | Viashino Advisor | Vigilance {T}: Add {R}{G}. Spend this mana only to cast face-down spells or to turn creatures face up. | Tony Foti

Worldsoul's Rage | Sorcery | | Worldsoul's Rage deals X damage to any target. Put up to X land cards from your hand and/or graveyard onto the battlefield tapped. | Lius Lasahido

Yarus, Roar of the Old Gods | Legendary Creature | Centaur Druid | Other creatures you control have haste. Whenever one or more face-down creatures you control deal combat damage to a player, draw a card. Whenever a face-down creature you control dies, return it to the battlefield face down under its owner's control if it's a permanent card, then turn it face up. | Dmitry Burmak

Hustle // Bustle | Instant // Sorcery | | Target creature attacks or blocks this turn if able. // Creatures you control get +2/+2 and gain trample until end of turn. You may turn a creature you control face up. | Valera Lutfullina

Leyline of the Guildpact | Enchantment | | If Leyline of the Guildpact is in your opening hand, you may begin the game with it on the battlefield. Each nonland permanent you control is all colors. Lands you control are every basic land type in addition to their other types. | Daarken

Niv-Mizzet, Guildpact | Legendary Creature | Dragon Avatar | Flying, hexproof from multicolored Whenever Niv-Mizzet, Guildpact deals combat damage to a player, it deals X damage to any target, target player draws X cards, and you gain X life, where X is the number of different color pairs among permanents you control that are exactly two colors. | Chris Rallis