Tarkir: Dragonstorm

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

Kin-Tree Severance | Instant | | Exile target permanent with mana value 3 or greater. | Zack Stella

Perennation | Sorcery | | Return target permanent card from your graveyard to the battlefield with a hexproof counter and an indestructible counter on it. | Eli Minaya

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

Revival of the Ancestors | Enchantment | Saga | (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — Create three 1/1 white Spirit creature tokens. II — Distribute three +1/+1 counters among one, two, or three target creatures you control. III — Creatures you control gain trample and lifelink until end of turn. | Clint Lockwood

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

Call the Spirit Dragons | Enchantment | | Dragons you control have indestructible. At the beginning of your upkeep, for each color, put a +1/+1 counter on a Dragon you control of that color. If you put +1/+1 counters on five Dragons this way, you win the game. | Liiga Smilshkalne