Crookshank Kobolds

Mountain

Grapeshot

Grapeshot deals 1 damage to any target.
Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

Culling the Weak

As an additional cost to cast this spell, sacrifice a creature.
Add {B}{B}{B}{B}.

Kobolds of Kher Keep

Lotus Petal

{T}, Sacrifice this artifact: Add one mana of any color.

Ornithopter

Goblin Bombardment

Sacrifice a creature: This enchantment deals 1 damage to any target.

Swamp

Ad Nauseam

Reveal the top card of your library and put that card into your hand. You lose life equal to its mana value. You may repeat this process any number of times.