
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

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

Barrensteppe Siege | Enchantment | | As this enchantment enters, choose Abzan or Mardu.
• Abzan — At the beginning of your end step, put a +1/+1 counter on each creature you control.
• Mardu — At the beginning of your end step, if a creature died under your control this turn, each opponent sacrifices a creature of their choice. | Tuan Duong Chu

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

All-Out Assault | Enchantment | | Creatures you control get +1/+1 and have deathtouch.
When this enchantment enters, if it's your main phase, there is an additional combat phase after this phase followed by an additional main phase. When you next attack this turn, untap each creature you control. | Joshua Cairos

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

Inevitable Defeat | Instant | | This spell can't be countered.
Exile target nonland permanent. Its controller loses 3 life and you gain 3 life. | Cristi Balanescu

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

Thunder of Unity | Enchantment | Saga | (As this Saga enters step, add a lore counter. Sacrifice after III.)
I — You draw two cards and you lose 2 life.
II, III — Whenever a creature you control enters this turn, each opponent loses 1 life and you gain 1 life. | Clint Lockwood

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

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

Abzan Monument | Artifact | | When this artifact enters, search your library for a basic Plains, Swamp, or Forest card, reveal it, put it into your hand, then shuffle.
{1}{W}{B}{G}, {T}, Sacrifice this artifact: Create an X/X white Spirit creature token, where X is the greatest toughness among creatures you control. Activate only as a sorcery. | Jorge Jacinto

Mardu Monument | Artifact | | When this artifact enters, search your library for a basic Mountain, Plains, or Swamp card, reveal it, put it into your hand, then shuffle.
{2}{R}{W}{B}, {T}, Sacrifice this artifact: Create three 1/1 red Warrior creature tokens. They gain menace and haste until end of turn. Activate only as a sorcery. (A creature with menace can't be blocked except by two or more creatures.) | Salvatorre Zee Yazzie

Nomad Outpost | Land | | This land enters tapped.
{T}: Add {R}, {W}, or {B}. | Alayna Danner

Sandsteppe Citadel | Land | | This land enters tapped.
{T}: Add {W}, {B}, or {G}. | Diego Gisbert

Scoured Barrens | Land | | This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {W} or {B}. | Brent Hollowell