Oppressive Rays

Enchant creature
Enchanted creature can't attack or block unless its controller pays {3}.
Activated abilities of enchanted creature cost {3} more to activate.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Raise the Alarm

Create two 1/1 white Soldier creature tokens.

Lava Axe

Lava Axe deals 5 damage to target player or planeswalker.

Lightning Strike

Lightning Strike deals 3 damage to any target.

Dragon Fodder

Create two 1/1 red Goblin creature tokens.

Pacifism

Enchant creature
Enchanted creature can't attack or block.

Forgotten Cave

Forgotten Cave enters tapped.
{T}: Add {R}.
Cycling {R} ({R}, Discard this card: Draw a card.)

Mountain

Plains

Aven Skirmisher

Soul's Attendant

Whenever another creature enters, you may gain 1 life.

Burst Lightning

Kicker {4} (You may pay an additional {4} as you cast this spell.)
Burst Lightning deals 2 damage to any target. If this spell was kicked, it deals 4 damage instead.

Searing Spear

Searing Spear deals 3 damage to any target.

Triplicate Spirits

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
Create three 1/1 white Spirit creature tokens with flying.

Shock

Soulmender

Tarfire

Ghirapur Gearcrafter

When Ghirapur Gearcrafter enters, create a 1/1 colorless Thopter artifact creature token with flying. (A creature with flying can't be blocked except by creatures with flying or reach.)