Pioneer Masters

Exquisite Firecraft | Sorcery | | Exquisite Firecraft deals 4 damage to any target. Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, this spell can't be countered. | Chase Stone

Radiant Flames | Sorcery | | Converge — Radiant Flames deals X damage to each creature, where X is the number of colors of mana spent to cast this spell. | Slawomir Maniak

Rakdos's Return | Sorcery | | Rakdos's Return deals X damage to target opponent or planeswalker. That player or that planeswalker's controller discards X cards. | Daarken