Budget Alternatives to Master Transmuter

Aetherplasm $0.06 2UU · Illusion Whenever this creature blocks a creature, you may return this creature to its owner's hand. Murasa Rootgrazer $0.07 GW · Beast Vigilance Arms Race $0.08 3R · Enchantment {3}{R}: You may put an artifact card from your hand onto the battlefield. Metathran Aerostat $0.21 2UU · Metathran Flying Covert Technician $0.22 2U · Human Ninja Ninjutsu {1}{U} Incandescent Soulstoke $0.22 2R · Elemental Shaman Other Elemental creatures you control get +1/+1. Zareth San, the Trickster $0.24 3UB · Merfolk Rogue Flash Mindwrack Liege $0.26 3U/RU/RU/R · Horror Other blue creatures you control get +1/+1. Zimone, Quandrix Prodigy $0.27 GU · Human Wizard {1}, {T}: You may put a land card from your hand onto the battlefield tapped. Jhoira, Ageless Innovator $0.28 UR · Human Artificer {T}: Put two ingenuity counters on Jhoira, then you may put an artifact card with mana value X or... Shigeki, Jukai Visionary $0.29 1G · Snake Druid {1}{G}, {T}, Return Shigeki to its owner's hand: Reveal the top four cards of your library. Dermoplasm $0.32 2U · Shapeshifter Flying Spatula of the Ages $0.36 4 · Artifact {4}, {T}, Sacrifice this artifact: You may put a silver-bordered or acorn permanent card from you... Dakkon, Shadow Slayer $0.63 WUB · Dakkon Dakkon enters with a number of loyalty counters on him equal to the number of lands you control. Oviya, Automech Artisan $0.95 3G · Human Artificer Each creature that's attacking one of your opponents has trample. Evershrike $0.99 3W/BW/B · Elemental Spirit Flying Everythingamajig $1.10 5 · Artifact {2}, {T}: Draw a card.