<3 <3 MIRRORWEAVE <3 <3
There's some interesting tension with Mirrorweave in both gameplay and design: you need bodies to make it most effective, which means running more army-in-a-can cards, but none of those cards by themselves are things you'd want to copy with Mirrorweave. It's also less effective in our Cubes than it might be in Cubes that exemplify power-maximization, as we have fewer cards like Hero of Bladehold or w/e that make juicy targets for it; but Cubes like that are less likely to have room for Mirrorweave unless they're large, at which point the Cube is diluted enough that such targets are harder to come by.
Despite all of that though, the card leads to some awesome stories; it's impossible to feel bad about losing to Mirrorweave. Various applications:
- copy something with 0 printed toughness (Phantom Centaur, Mikaeus), or some automatic sacrifice clause (Hellspark Elemental, Hell's Thunder) and kill everything
- copy something with deathtouch and watch the bloodbath (Baleful Strix, Nighthawk, Acidic Slime)
- copy an undying/persist/LTB/dies trigger creature in response to a sweeper (favourites include Geralf's Messenger, Blood Artist, Perilous Myr, Rotlung Reanimator, Yavimaya Elder, Diregraf Captain, Mitotic Slime, Thragtusk, Wurmcoil Engine, Massacre Wurm)
- copy any tribal lord/battle cry creature/similar (highlights include Hellrider, Sublime Archangel (!!), Hero of Bladehold (!!))
- get large and in charge (any dumb animal, preferably a Titan)