Tarkir: Dragonstorm

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

Bloomvine Regent | Creature | Dragon | Flying Whenever this creature or another Dragon you control enters, you gain 3 life. | Johann Bodin

Inspirited Vanguard | Creature | Human Soldier | Whenever this creature enters or attacks, it endures 2. (Put two +1/+1 counters on it or create a 2/2 white Spirit creature token.) | Carlos Palma Cruchaga

Sagu Wildling | Creature | Dragon | Flying When this creature enters, you gain 3 life. | Gaboleps

Disruptive Stormbrood | Creature | Dragon | Flying When this creature enters, destroy up to one target artifact or enchantment. | Edgar Sánchez Hidalgo

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

Lotuslight Dancers | Creature | Zombie Bard | Lifelink When this creature enters, search your library for a black card, a green card, and a blue card. Put those cards into your graveyard, then shuffle. | Jodie Muir

Teval, Arbiter of Virtue | Legendary Creature | Spirit Dragon | Flying, lifelink Spells you cast have delve. (Each card you exile from your graveyard while casting those spells pays for {1}.) Whenever you cast a spell, you lose life equal to its mana value. | Alexander Ostrowski

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

Roar of Endless Song | Enchantment | Saga | (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I, II — Create a 5/5 green Elephant creature token. III — Double the power and toughness of each creature you control until end of turn. | Clint Lockwood

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