, Pay 1 life, Sacrifice Arid Mesa: Search your library for a Mountain or Plains card and put it onto the battlefield. Then shuffle your library.

Searing Blaze deals 1 damage to target player and 1 damage to target creature that player controls.
Landfall - If you had a land enter the battlefield under your control this turn, Searing Blaze deals 3 damage to that player and 3 damage to that creature instead.

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

Trample, haste
At the beginning of the end step, sacrifice Hellspark Elemental.
Unearth

Haste
Whenever Goblin Guide attacks, defending player reveals the top card of his or her library. If it's a land card, that player puts it into his or her hand.

Kicker
When Goblin Bushwhacker enters the battlefield, if it was kicked, creatures you control get +1/+0 and gain haste until end of turn.

: Figure of Destiny becomes a 2/2 Kithkin Spirit.
: If Figure of Destiny is a Spirit, it becomes a 4/4 Kithkin Spirit Warrior.
: If Figure of Destiny is a Warrior, it becomes an 8/8 Kithkin Spirit Warrior Avatar with flying and first strike.

Teetering Peaks enters the battlefield tapped.
When Teetering Peaks enters the battlefield, target creature gets +2/+0 until end of turn.
: Add to your mana pool.

, Pay 1 life, Sacrifice Scalding Tarn: Search your library for an Island or Mountain card and put it onto the battlefield. Then shuffle your library.

Lightning Bolt deals 3 damage to target creature or player.

As an additional cost to cast Devastating Summons, sacrifice X lands.
Put two X/X red Elemental creature tokens onto the battlefield.

Arc Trail deals 2 damage to target creature or player and 1 damage to another target creature or player.

Forked Bolt deals 2 damage divided as you choose among one or two target creature and/or players.

If Leyline of Punishment is in your opening hand, you may begin the game with it on the battlefield.
Players can't gain life.
Damage can't be prevented.

Living Weapon
Equipped creature gets +0/+1 and has "Sacrifice this creature: This creature deals 1 damage to target creature or player."
Equip

Choose one - Slagstorm deals 3 damage to each creature; or Slagstorm deals 3 damage to each player.

Destroy target artifact. Smash to Smithereens deals 3 damage to that artifact's controller.

Whenever a land enters the battlefield under an opponent's control, if that player had another land enter the battlefield under his or her control this turn, Tunnel Ignus deals 3 damage to that player.