Chandra, Flamecaller

+1: Create two 3/1 red Elemental creature tokens with haste. Exile them at the beginning of the next end step.
0: Discard all the cards in your hand, then draw that many cards plus one.
−X: Chandra deals X damage to each creature.

Kor Firewalker

Protection from red
Whenever a player casts a red spell, you may gain 1 life.

Orim's Thunder

Kicker {R} (You may pay an additional {R} as you cast this spell.)
Destroy target artifact or enchantment. If this spell was kicked, it deals damage equal to that permanent's mana value to target creature.

Beasts of Bogardan

Protection from red
This creature gets +1/+1 as long as an opponent controls a nontoken white permanent.

Thermal Glider

Guardian of the Guildpact

Chain Reaction

Chain Reaction deals X damage to each creature, where X is the number of creatures on the battlefield.

Powerstone Minefield

Whenever a creature attacks or blocks, this enchantment deals 2 damage to it.

Earthquake

Earthquake deals X damage to each creature without flying and each player.

Vulshok Refugee

Mountain

Defender of Law

Pyrohemia

At the beginning of the end step, if no creatures are on the battlefield, sacrifice this enchantment.
{R}: This enchantment deals 1 damage to each creature and each player.

Alabaster Potion

Choose one —
• Target player gains X life.
• Prevent the next X damage that would be dealt to any target this turn.

Soltari Priest

Protection from red
Shadow (This creature can block or be blocked by only creatures with shadow.)