Tarkir: Dragonstorm

Cori Mountain Stalwart | Creature | Human Monk | Flurry — Whenever you cast your second spell each turn, this creature deals 2 damage to each opponent and you gain 2 life. | Josiah "Jo" Cameron

Frontline Rush | Instant | | Choose one — • Create two 1/1 red Goblin creature tokens. • Target creature gets +X/+X until end of turn, where X is the number of creatures you control. | Filipe Pagliuso

Effortless Master | Creature | Orc Monk | Vigilance Menace (This creature can't be blocked except by two or more creatures.) This creature enters with two +1/+1 counters on it if you've cast two or more spells this turn. | Lie Setiawan

Glacial Dragonhunt | Sorcery | | Draw a card, then you may discard a card. When you discard a nonland card this way, Glacial Dragonhunt deals 3 damage to target creature. Harmonize {4}{U}{R} (You may cast this card from your graveyard for its harmonize cost. You may tap a creature you control to reduce that cost by {X}, where X is its power. Then exile this spell.) | Igor Grechanyi

Jeskai Brushmaster | Creature | Orc Monk | Double strike Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) | Nino Vecia

Jeskai Shrinekeeper | Creature | Dragon | Flying, haste Whenever this creature deals combat damage to a player, you gain 1 life and draw a card. | Andrew Mar

Riverwheel Sweep | Sorcery | | Tap target creature. Put three stun counters on it. (If a permanent with a stun counter would become untapped, remove one from it instead.) Exile the top two cards of your library. Choose one of them. Until the end of your next turn, you may play that card. | Wayne Wu

Bone-Cairn Butcher | Creature | Demon | Mobilize 2 (Whenever this creature attacks, create two tapped and attacking 1/1 red Warrior creature tokens. Sacrifice them at the beginning of the next end step.) Attacking tokens you control have deathtouch. | David Palumbo

Defibrillating Current | Sorcery | | Defibrillating Current deals 4 damage to target creature or planeswalker and you gain 2 life. | Isis

Sonic Shrieker | Creature | Dragon | Flying When this creature enters, it deals 2 damage to any target and you gain 2 life. If a player is dealt damage this way, they discard a card. | Jason A. Engle

Dragonclaw Strike | Sorcery | | Double the power and toughness of target creature you control until end of turn. Then it fights up to one target creature an opponent controls. (Each deals damage equal to its power to the other.) | Yeong-Hao Han

Karakyk Guardian | Creature | Dragon | Flying, vigilance, trample This creature has hexproof if it hasn't dealt damage yet. (It can't be the target of spells or abilities your opponents control.) | Joe Slucher

Mammoth Bellow | Sorcery | | Create a 5/5 green Elephant creature token. Harmonize {5}{G}{U}{R} (You may cast this card from your graveyard for its harmonize cost. You may tap a creature you control to reduce that cost by {X}, where X is its power. Then exile this spell.) | Xavier Ribeiro