Fireblast

You may sacrifice two Mountains rather than pay this spell's mana cost.
Fireblast deals 4 damage to any target.

Pyroblast

Choose one —
• Counter target spell if it's blue.
• Destroy target permanent if it's blue.

({R/P} can be paid with either {R} or 2 life.)
Gut Shot deals 1 damage to any target.

Needle Drop deals 1 damage to any target that was dealt damage this turn.
Draw a card.

Add {R}{R}, then add {R} for each card named Rite of Flame in each graveyard.

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

Exile Simian Spirit Guide from your hand: Add {R}.

{T}, Sacrifice Lotus Petal: Add one mana of any color.

Return target creature card with mana value 3 or less from your graveyard to the battlefield.
Cycling {2} ({2}, Discard this card: Draw a card.)

({T}: Add {B} or {R}.)
Sulfurous Mire enters tapped.

Draw two cards, then discard two cards.
Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Damage can't be prevented this turn.
Flashback {R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Lightning Bolt deals 3 damage to any target.

({T}: Add {B} or {R}.)
Geothermal Bog enters tapped.

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