This effect can cause each other creature to stop being a creature. For example, if you target an animated Mutavault (a land with an activated ability that turns it into a creature), only the printed wording will be copied — the “becomes a creature” effect won’t. Each other creature will become an unanimated Mutavault.
2008-05-01
wotc
Noncopy effects that have already applied to the other creatures will continue to apply to them. For example, if Giant Growth had given one of them +3/+3 earlier in the turn, then Mirrorweave made it a copy of Grizzly Bears, it will be a 5/5 Grizzly Bears.
2008-05-01
wotc
If the targeted creature is itself copying a creature, each other creature will become whatever it’s copying, as modified by that copy effect. For example, if you target a Cemetery Puca that’s copying a Grizzly Bears (a 2/2 creature with no abilities), each other creature will become a Grizzly Bears with the Cemetery Puca ability.
2008-05-01
wotc
If the targeted creature is a token, each other creature copies the original characteristics of that token as stated by the effect that put it onto the battlefield. Those creatures don’t become tokens.
2008-05-01
wotc
Each other creature copies the printed values of the targeted creature, plus any copy effects that have been applied to that creature. They won’t copy other effects that have changed the targeted creature’s power, toughness, types, color, or so on. They also won’t copy counters on the targeted creature (they’ll each just retain the counters they already have).
2008-05-01
wotc
As the turn ends, the other creatures revert to what they were before. If two Mirrorweaves are cast on the same turn, they’ll both wear off at the same time.
Format Legality
Standard
Not Legal
Future
Not Legal
Historic
Not Legal
Timeless
Not Legal
Gladiator
Not Legal
Pioneer
Not Legal
Modern
Legal
Legacy
Legal
Pauper
Not Legal
Vintage
Legal
Penny
Legal
Commander
Legal
Oathbreaker
Legal
Standardbrawl
Not Legal
Brawl
Not Legal
Alchemy
Not Legal
Paupercommander
Not Legal
Duel
Legal
Oldschool
Not Legal
Premodern
Not Legal
Predh
Legal
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