Reckless Impulse

Exile the top two cards of your library. Until the end of your next turn, you may play those cards.

Sandstone Needle

Sandstone Needle enters tapped with two depletion counters on it.
{T}, Remove a depletion counter from Sandstone Needle: Add {R}{R}. If there are no depletion counters on Sandstone Needle, sacrifice it.

Seething Song

Kessig Flamebreather

Whenever you cast a noncreature spell, Kessig Flamebreather deals 1 damage to each opponent.

Desperate Ritual

Add {R}{R}{R}.
Splice onto Arcane {1}{R} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Manamorphose

Add two mana in any combination of colors.
Draw a card.

Mountain

Wrenn's Resolve

Kiln Fiend

Whenever you cast an instant or sorcery spell, Kiln Fiend gets +3/+0 until end of turn.

Pyretic Ritual

Guttersnipe

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