Bathe in Dragonfire

Bathe in Dragonfire deals 4 damage to target creature.

Dragon Fodder

Create two 1/1 red Goblin creature tokens.

Goblin Roughrider

Defiant Ogre

When Defiant Ogre enters, choose one —
• Put a +1/+1 counter on Defiant Ogre.
• Destroy target artifact.

Mountain

Trumpet Blast

Attacking creatures get +2/+0 until end of turn.

Arrow Storm

Arrow Storm deals 4 damage to any target.
Raid — If you attacked this turn, instead Arrow Storm deals 5 damage to that permanent or player and the damage can't be prevented.

Rubblebelt Recluse

Rubblebelt Recluse attacks each combat if able.

Mardu Scout

Dash {1}{R} (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)

Foundry Street Denizen

Whenever another red creature you control enters, Foundry Street Denizen gets +1/+0 until end of turn.

Goblin Heelcutter

Whenever Goblin Heelcutter attacks, target creature can't block this turn.
Dash {2}{R} (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.)

Riot Piker

First strike
Riot Piker attacks each combat if able.

Krenko's Enforcer

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Lightning Shrieker

Flying, trample, haste
At the beginning of the end step, Lightning Shrieker's owner shuffles it into their library.

Rage of Purphoros

Rage of Purphoros deals 4 damage to target creature. It can't be regenerated this turn. Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Subterranean Scout

When Subterranean Scout enters, target creature with power 2 or less can't be blocked this turn.

Miner's Bane

{2}{R}: Miner's Bane gets +1/+0 and gains trample until end of turn. (It can deal excess combat damage to the player or planeswalker it's attacking.)