Budget Alternatives to Thunderclap Drake

Storm Skreelix $0.09 3UR · Drake Horror Flying Ether $0.09 3U · Artifact {T}, Exile this artifact: Add {U}. Teach by Example $0.16 U/RU/R · Instant When you next cast an instant or sorcery spell this turn, copy that spell. Cursed Recording $0.20 2RR · Artifact Whenever you cast an instant or sorcery spell, put a time counter on this artifact. Doublecast $0.21 RR · Sorcery When you next cast an instant or sorcery spell this turn, copy that spell. Echo Storm $0.25 3UU · Sorcery When you cast this spell, copy it for each time you've cast your commander from the command zone ... Najal, the Storm Runner $0.25 2UUR · Efreet Wizard You may cast sorcery spells as though they had flash. Howl of the Horde $0.26 2R · Sorcery When you next cast an instant or sorcery spell this turn, copy that spell. Galvanic Iteration $0.28 UR · Instant When you next cast an instant or sorcery spell this turn, copy that spell. Adaptive Training Post $0.30 2U · Artifact Whenever you cast an instant or sorcery spell, if this artifact has fewer than three charge count... Complete the Circuit $0.31 5U · Instant Convoke Rimefire Torque $0.31 1U · Artifact As this artifact enters, choose a creature type. Mercurial Spelldancer $0.34 1U · Phyrexian Rogue This creature can't be blocked. Font of Magic $0.38 3U · Enchantment Instant and sorcery spells you cast cost {1} less to cast for each time you've cast a commander f... Thousand-Year Storm $1.10 4UR · Enchantment Whenever you cast an instant or sorcery spell, copy it for each other instant and sorcery spell y... Ral, Storm Conduit $1.15 2UR · Ral Whenever you cast or copy an instant or sorcery spell, Ral deals 1 damage to target opponent or p... Rowan, Scholar of Sparks // Will, Scholar of Frost $1.64 Rowan // Legendary Planeswalker — Will Instant and sorcery spells you cast cost {1} less to cast.