Lightning Bolt deals 3 damage to any target.

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

Exile target black or red permanent.

Target player draws two cards and loses 2 life.

This spell can't be countered.
Volcanic Fallout deals 2 damage to each creature and each player.

All creatures get -2/-2 until end of turn.

As an additional cost to cast this spell, sacrifice a land.
Search your library for up to two basic land cards, put them onto the battlefield, then shuffle.

Counter target spell.

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)
Bituminous Blast deals 4 damage to target creature.