Budget Alternatives to Seething Song

Coal Stoker $0.05 3R · Elemental When this creature enters, if you cast it from your hand, add {R}{R}{R}. Endrider Catalyzer $0.06 1R · Human Warrior Start your engines! Conduit of Storms // Conduit of Emrakul $0.06 Werewolf Horror // Creature — Eldrazi Werewolf Whenever this creature attacks, add {R} at the beginning of your next main phase this turn. Grinning Ignus $0.08 2R · Elemental {R}, Return this creature to its owner's hand: Add {C}{C}{R}. Vessel of Volatility $0.13 1R · Enchantment {1}{R}, Sacrifice this enchantment: Add {R}{R}{R}{R}. Catalyst Elemental $0.14 2R · Elemental Sacrifice this creature: Add {R}{R}. Zookeeper Mechan $0.17 1R · Robot {T}: Add {R}. Soulbright Flamekin $0.21 1R · Elemental Shaman {2}: Target creature gains trample until end of turn. Kessig Naturalist // Lord of the Ulvenwald $0.22 Human Werewolf // Creature — Werewolf Whenever this creature attacks, add {R} or {G}. Rodeo Pyromancers $0.23 3R · Human Mercenary Whenever you cast your first spell each turn, add {R}{R}. Foriysian Totem $0.24 3 · Artifact {T}: Add {R}. Reckless Barbarian $0.29 1R · Dragon Barbarian Sacrifice this creature: Add {R}{R}. Ore-Rich Stalactite // Cosmium Catalyst $0.35 Artifact // Artifact {T}: Add {R}. Red Mana Battery $0.40 4 · Artifact {2}, {T}: Put a charge counter on this artifact. Knotvine Mystic $0.42 RGW · Elf Druid {1}, {T}: Add {R}{G}{W}. Priest of Urabrask $0.87 2R · Phyrexian Human Cleric When this creature enters, add {R}{R}{R}. Runaway Steam-Kin $1.14 1R · Elemental Whenever you cast a red spell, if this creature has fewer than three +1/+1 counters on it, put a ...