Incinerate

Incinerate deals 3 damage to any target. A creature dealt damage this way can't be regenerated this turn.

Lava Spike

Lava Spike deals 3 damage to target player or planeswalker.

Lightning Strike

Lightning Strike deals 3 damage to any target.

Tarfire

Shock

Thunderbolt

Choose one —
• Thunderbolt deals 3 damage to target player or planeswalker.
• Thunderbolt deals 4 damage to target creature with flying.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Galvanic Blast

Galvanic Blast deals 2 damage to any target.
Metalcraft — Galvanic Blast deals 4 damage instead if you control three or more artifacts.

Scorching Lava

Kicker {R} (You may pay an additional {R} as you cast this spell.)
Scorching Lava deals 2 damage to any target. If this spell was kicked, that creature can't be regenerated this turn and if it would die this turn, exile it instead.

Mountain

Rift Bolt

Rift Bolt deals 3 damage to any target.
Suspend 1—{R} (Rather than cast this card from your hand, you may pay {R} and exile it with a time counter on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)