Ravnica Allegiance

Amplifire | Creature | Elemental | At the beginning of your upkeep, reveal cards from the top of your library until you reveal a creature card. Until your next turn, Amplifire's base power becomes twice that card's power and its base toughness becomes twice that card's toughness. Put the revealed cards on the bottom of your library in a random order. | Dan Scott

Dagger Caster | Creature | Viashino Rogue | When Dagger Caster enters the battlefield, it deals 1 damage to each opponent and 1 damage to each creature your opponents control. | Viktor Titov

Ghor-Clan Wrecker | Creature | Human Warrior | Riot (This creature enters the battlefield with your choice of a +1/+1 counter or haste.) Menace (This creature can't be blocked except by two or more creatures.) | David Palumbo

Rubble Reading | Sorcery | | Destroy target land. Scry 2. | Aaron Miller

Spikewheel Acrobat | Creature | Human Rogue | Spectacle {2}{R} (You may cast this spell for its spectacle cost rather than its mana cost if an opponent lost life this turn.) | Deruchenko Alexander

Macabre Mockery | Instant | | Put target creature card from an opponent's graveyard onto the battlefield under your control. It gets +2/+0 and gains haste until end of turn. Sacrifice it at the beginning of the next end step. | Deruchenko Alexander

Rafter Demon | Creature | Demon | Spectacle {3}{B}{R} (You may cast this spell for its spectacle cost rather than its mana cost if an opponent lost life this turn.) When Rafter Demon enters the battlefield, if its spectacle cost was paid, each opponent discards a card. | Slawomir Maniak

Rakdos Firewheeler | Creature | Human Rogue | When Rakdos Firewheeler enters the battlefield, it deals 2 damage to target opponent and 2 damage to up to one target creature or planeswalker. | Slawomir Maniak

Domri, Chaos Bringer | Legendary Planeswalker | Domri | +1: Add {R} or {G}. If that mana is spent on a creature spell, it gains riot. (It enters the battlefield with your choice of a +1/+1 counter or haste.) −3: Look at the top four cards of your library. You may reveal up to two creature cards from among them and put them into your hand. Put the rest on the bottom of your library in a random order. −8: You get an emblem with "At the beginning of each end step, create a 4/4 red and green Beast creature token with trample." | Zack Stella

Frenzied Arynx | Creature | Cat Beast | Riot (This creature enters the battlefield with your choice of a +1/+1 counter or haste.) Trample {4}{R}{G}: Frenzied Arynx gets +3/+0 until end of turn. | Filip Burburan

Sunder Shaman | Creature | Giant Shaman | Sunder Shaman can't be blocked by more than one creature. Whenever Sunder Shaman deals combat damage to a player, destroy target artifact or enchantment that player controls. | Jason Rainville

Collision // Colossus | Instant // Instant | | Collision deals 6 damage to target creature with flying. // Target creature gets +4/+2 and gains trample until end of turn. | Jason Rainville