The ability’s effect has no duration. The affected land will remain an artifact, creature, and land until the game ends, it leaves the battlefield, or some other effect changes its types.
01-08-2008
wotc
A noncreature permanent that turns into a creature can attack, and its {T} abilities can be activated, only if its controller has continuously controlled that permanent since the beginning of their most recent turn. It doesn’t matter how long the permanent has been a creature.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.
, Sacrifice Mishra’s Groundbreaker: Target land becomes a 3/3 artifact creature that’s still a land. (This effect lasts indefinitely.)
