Dragonback Lancer

Flying
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.)

Evolving Wilds

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Salt Road Packbeast

Affinity for creatures (This spell costs {1} less to cast for each creature you control.)
When this creature enters, draw a card.

Shock Brigade

Menace (This creature can't be blocked except by two or more creatures.)
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.)

Underfoot Underdogs

When this creature enters, create a 1/1 red Goblin creature token.
{1}, {T}: Target creature you control with power 2 or less can't be blocked this turn.

Osseous Exhale

As an additional cost to cast this spell, you may behold a Dragon. (You may choose a Dragon you control or reveal a Dragon card from your hand.)
Osseous Exhale deals 5 damage to target attacking or blocking creature. If a Dragon was beheld, you gain 2 life.

Shocking Sharpshooter

Reach
Whenever another creature you control enters, this creature deals 1 damage to target opponent.

Windcrag Siege

As this enchantment enters, choose Mardu or Jeskai.
• Mardu — If a creature attacking causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.
• Jeskai — At the beginning of your upkeep, create a 1/1 red Goblin creature token. It gains lifelink and haste until end of turn.

Coordinated Maneuver

Choose one —
• Coordinated Maneuver deals damage equal to the number of creatures you control to target creature or planeswalker.
• Destroy target enchantment.

Stormplain Detainment

When this enchantment enters, exile target nonland permanent an opponent controls until this enchantment leaves the battlefield.

Molten Exhale

You may cast this spell as though it had flash if you behold a Dragon as an additional cost to cast it. (To behold a Dragon, choose a Dragon you control or reveal a Dragon card from your hand.)
Molten Exhale deals 4 damage to target creature or planeswalker.

Plains

Dragonstorm Globe

Each Dragon you control enters with an additional +1/+1 counter on it.
{T}: Add one mana of any color.

Rescue Leopard

Whenever this creature becomes tapped, you may discard a card. If you do, draw a card.

Mountain

Summit Intimidator

Reach
When this creature enters, target creature can't block this turn.

Loxodon Battle Priest

At the beginning of combat on your turn, put a +1/+1 counter on another target creature you control.

Meticulous Artisan

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
When this creature enters, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Arashin Sunshield

When this creature enters, exile up to two target cards from a single graveyard.
{W}, {T}: Tap target creature.