Tarkir: Dragonstorm

Mardu Devotee | Creature | Human Scout | When this creature enters, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.) {1}: Add {R}, {W}, or {B}. Activate only once each turn. | Lorenzo Mastroianni

Abzan Devotee | Creature | Dog Cleric | {1}: Add {W}, {B}, or {G}. Activate only once each turn. {2}{B}: Return this card from your graveyard to your hand. | Forrest Imel

Iridescent Tiger | Creature | Cat | When this creature enters, if you cast it, add {W}{U}{B}{R}{G}. | Fajareka Setiawan

Hardened Tactician | Creature | Human Warrior | {1}, Sacrifice a token: Draw a card. | Milivoj Ćeran

Marshal of the Lost | Creature | Orc Warrior | Deathtouch Whenever you attack, target creature gets +X/+X until end of turn, where X is the number of attacking creatures. | Andreas Zafiratos

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

Mardu Siegebreaker | Creature | Human Warrior | Deathtouch, haste When this creature enters, exile up to one other target creature you control until this creature leaves the battlefield. Whenever this creature attacks, for each opponent, create a tapped token that's a copy of the exiled card attacking that opponent. At the beginning of your end step, sacrifice those tokens. | Chris Seaman

Neriv, Heart of the Storm | Legendary Creature | Spirit Dragon | Flying If a creature you control that entered this turn would deal damage, it deals twice that much damage instead. | Victor Adame Minguez

Reigning Victor | Creature | Orc Warrior | Mobilize 1 (Whenever this creature attacks, create a tapped and attacking 1/1 red Warrior creature token. Sacrifice it at the beginning of the next end step.) When this creature enters, target creature gets +1/+0 and gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.) | Warren Mahy

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

Zurgo, Thunder's Decree | Legendary Creature | Orc Warrior | 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.) During your end step, Warrior tokens you control have "This token can't be sacrificed." | Steve Prescott

Armament Dragon | Creature | Dragon | Flying When this creature enters, distribute three +1/+1 counters among one, two, or three target creatures you control. | Maxime Minard

Betor, Kin to All | Legendary Creature | Spirit Dragon | Flying At the beginning of your end step, if creatures you control have total toughness 10 or greater, draw a card. Then if creatures you control have total toughness 20 or greater, untap each creature you control. Then if creatures you control have total toughness 40 or greater, each opponent loses half their life, rounded up. | Alexander Ostrowski

Felothar, Dawn of the Abzan | Legendary Creature | Human Warrior | Trample Whenever Felothar enters or attacks, you may sacrifice a nonland permanent. When you do, put a +1/+1 counter on each creature you control. | Victor Adame Minguez

Reputable Merchant | Creature | Human Citizen | When this creature enters or dies, put a +1/+1 counter on target creature you control. | Craig J Spearing

Severance Priest | Creature | Djinn Cleric | Deathtouch When this creature enters, target opponent reveals their hand. You may choose a nonland card from it. If you do, exile that card. When this creature leaves the battlefield, the exiled card's owner creates an X/X white Spirit creature token, where X is the mana value of the exiled card. | Scott Murphy

Skirmish Rhino | Creature | Rhino | Trample When this creature enters, each opponent loses 2 life and you gain 2 life. | James Bousema

Yathan Roadwatcher | Creature | Human Scout | When this creature enters, if you cast it, mill four cards. When you do, return target creature card with mana value 3 or less from your graveyard to the battlefield. | Inkognit