Devout Harpist

{T}: Destroy target Aura attached to a creature.

Great Furnace

Battle-Scarred Goblin

Whenever this creature becomes blocked, it deals 1 damage to each creature blocking it.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Celestial Flare

Target player sacrifices an attacking or blocking creature of their choice.

Electrickery

Electrickery deals 1 damage to target creature you don't control.
Overload {1}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Bound in Silence

Enchant creature
Enchanted creature can't attack or block.

Plains

Goblin Grenade

As an additional cost to cast this spell, sacrifice a Goblin.
Goblin Grenade deals 5 damage to any target.

Guttersnipe

Whenever you cast an instant or sorcery spell, this creature deals 2 damage to each opponent.

Remove Enchantments

Return to your hand all enchantments you both own and control, all Auras you own attached to permanents you control, and all Auras you own attached to attacking creatures your opponents control. Then destroy all other enchantments you control, all other Auras attached to permanents you control, and all other Auras attached to attacking creatures your opponents control.

Kuldotha Rebirth

As an additional cost to cast this spell, sacrifice an artifact.
Create three 1/1 red Goblin creature tokens.

Circle of Protection: Green

{1}: The next time a green source of your choice would deal damage to you this turn, prevent that damage.

Wind-Scarred Crag

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

Ancient Den

Conduit Goblin

When this creature enters, you get {E}{E} (two energy counters).
At the beginning of combat on your turn, you may pay {E}. If you do, another target creature you control gets +1/+0 and gains haste until end of turn.

Mountain

Galvanic Discharge

Choose target creature or planeswalker. You get {E}{E}{E} (three energy counters), then you may pay any amount of {E}. Galvanic Discharge deals that much damage to that permanent.

Improvised Club

As an additional cost to cast this spell, sacrifice an artifact or creature.
Improvised Club deals 4 damage to any target.

Patrician's Scorn

If you've cast another white spell this turn, you may cast this spell without paying its mana cost.
Destroy all enchantments.

Leave No Trace

Radiance — Destroy target enchantment and each other enchantment that shares a color with it.