Gruul Guildgate

This land enters tapped.
{T}: Add {R} or {G}.

Mountain

Swiftwater Cliffs

This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {U} or {R}.

Repeal

Return target nonland permanent with mana value X to its owner's hand.
Draw a card.

Artificer's Epiphany

Draw two cards. If you control no artifacts, discard a card.

Horizon Chimera

Flash
Flying, trample
Whenever you draw a card, you gain 1 life.

Essence Scatter

Cancel

Island

Bounding Krasis

Flash (You may cast this spell any time you could cast an instant.)
When Bounding Krasis enters, you may tap or untap target creature.

Ambush Viper

Burn

Burn deals 2 damage to any target.
Fuse (You may cast one or both halves of this card from your hand.)

Turn

Until end of turn, target creature loses all abilities and becomes a red Weird with base power and toughness 0/1.
Fuse (You may cast one or both halves of this card from your hand.)

Turn // Burn

Rolling Thunder

Rolling Thunder deals X damage divided as you choose among any number of targets.

Forest

Shock

Steam Augury

Reveal the top five cards of your library and separate them into two piles. An opponent chooses one of those piles. Put that pile into your hand and the other into your graveyard.

Spellheart Chimera

Flying, trample
Spellheart Chimera's power is equal to the number of instant and sorcery cards in your graveyard.

Thornwood Falls

This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {G} or {U}.