Terreno {T}: Adicione {1} à sua reserva de mana. {1}: Caverna Mutável torna-se uma criatura 2/2 com todos os tipos de criatura até o final do turno. Ela ainda conta como um terreno. Alguns morfolóides nascidos em Velis Vel nunca retornam, mas sua essência nunca se vai.
Illus. Fred Fields
Land {T}: Add {1} to your mana pool. {1}: Mutavault becomes a 2/2 creature with all creature types until end of turn. It's still a land.1
4/1/2008: Although Mutavault has all creature types while it's animated, it does not have the changeling keyword ability.
8/1/2008: A noncreature permanent that turns into a creature is subject to the "summoning sickness" rule: It can only attack, and its {T} abilities can only be activated, if its controller has continuously controlled that permanent since the beginning of his or her most recent turn.