Tarkir: Dragonstorm

Temur Devotee | Creature | Human Druid | Defender {1}: Add {G}, {U}, or {R}. Activate only once each turn. | Marina Ortega Lorente

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

Dragonbroods' Relic | Artifact | | {T}, Tap an untapped creature you control: Add one mana of any color. {3}{W}{U}{B}{R}{G}, Sacrifice this artifact: Create a 4/4 Dragon creature token named Reliquary Dragon that's all colors. It has flying, lifelink, and "When this token enters, it deals 3 damage to any target." Activate only as a sorcery. | Racrufi

Dragonback Assault | Enchantment | | When this enchantment enters, it deals 3 damage to each creature and each planeswalker. Landfall — Whenever a land you control enters, create a 4/4 red Dragon creature token with flying. | Ryan Pancoast

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

Eshki Dragonclaw | Legendary Creature | Human Warrior | Vigilance, trample, ward {1} At the beginning of combat on your turn, if you've cast both a creature spell and a noncreature spell this turn, draw a card and put two +1/+1 counters on Eshki Dragonclaw. | Tran Nguyen

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

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

Songcrafter Mage | Creature | Human Bard | Flash When this creature enters, target instant or sorcery card in your graveyard gains harmonize until end of turn. Its harmonize cost is equal to its mana cost. (You may cast that 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 the spell.) | Irina Nordsol

Temur Battlecrier | Creature | Orc Ranger | During your turn, spells you cast cost {1} less to cast for each creature you control with power 4 or greater. | Brent Hollowell

Temur Tawnyback | Creature | Beast | When this creature enters, draw a card, then discard a card. | Brian Valeza

Ureni, the Song Unending | Legendary Creature | Spirit Dragon | Flying, protection from white and from black When Ureni enters, it deals X damage divided as you choose among any number of target creatures and/or planeswalkers your opponents control, where X is the number of lands you control. | Alexander Ostrowski

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

Temur Monument | Artifact | | When this artifact enters, search your library for a basic Forest, Island, or Mountain card, reveal it, put it into your hand, then shuffle. {3}{G}{U}{R}, {T}, Sacrifice this artifact: Create a 5/5 green Elephant creature token. Activate only as a sorcery. | Sam Burley

Frontier Bivouac | Land | | This land enters tapped. {T}: Add {G}, {U}, or {R}. | Andrea Piparo