Erratic Explosion

Sorcery

Chaos Mutation

Instant

Return to the Sewers

Instant

Spontaneous Mutation

Enchantment — Aura

Accelerated Mutation

Instant

Auspicious Starrix

Creature — Elk Beast

Warped Physique

Instant

Argent Mutation

Instant

Planeswalker's Favor

Enchantment

Finale of Devastation

Sorcery

Nascent Metamorph

Creature — Shapeshifter

Repulsive Mutation

Instant

Mindleecher

Creature — Nightmare

Bewilder

Instant

Animal Magnetism

Sorcery

Metamorphose

Instant

Misleading Motes

Instant

Planeswalker's Scorn

Enchantment

Parcelbeast

Creature — Elemental Beast

Mitotic Manipulation

Sorcery

Aethermage's Touch

Instant

Lore Drakkis

Creature — Lizard Beast

Explosive Revelation

Sorcery

Goblin Machinist

Creature — Goblin

Polymorph

Sorcery

Spellshift

Instant

Migratory Greathorn

Creature — Beast

Leyline of Mutation

Enchantment

Unstable Mutation

Enchantment — Aura

Biomass Mutation

Instant