Budget Alternatives to Unnatural Selection

Terraformer $0.03 2U · Human Wizard {1}: Choose a basic land type. Serpentine Ambush $0.05 1U · Instant Until end of turn, target creature becomes a blue Serpent with base power and toughness 5/5. Mistform Wakecaster $0.08 4U · Illusion Flying Barbarian Guides $0.08 2R · Human Barbarian {2}{R}, {T}: Choose a land type. Eccentric Apprentice $0.08 2U · Tiefling Wizard Flying Wild Shape $0.09 G · Instant Choose one. Imagecrafter $0.15 U · Human Wizard {T}: Choose a creature type other than Wall. Metathran Transport $0.15 1UU · Metathran Flying Quickchange $0.17 1U · Instant Target creature becomes the color or colors of your choice until end of turn. Kargan Intimidator $0.19 1R · Human Warrior Cowards can't block Warriors. Outbreak $0.19 3B · Sorcery You may discard a Swamp card rather than pay this spell's mana cost. March from Velis Vel $0.20 2U · Sorcery Choose a nonbasic land type. Mistform Mutant $0.23 4UU · Illusion Mutant {1}{U}: Choose a creature type other than Wall. Trickery Charm $0.25 U · Instant Choose one — Elsewhere Flask $0.29 2 · Artifact When this artifact enters, draw a card. Etchings of the Chosen $0.35 1WB · Enchantment As this enchantment enters, choose a creature type. Selfless Safewright $0.68 3GG · Elf Warrior Flash Standardize $1.15 UU · Instant Choose a creature type other than Wall. Mirror of the Forebears $1.81 2 · Artifact As this artifact enters, choose a creature type.