Modern Horizons 3

Cursed Mirror

{T}: Add {R}.
As Cursed Mirror enters the battlefield, you may have it become a copy of any creature on the battlefield until end of turn, except it has haste.

{T}: Add {R}.
As this artifact enters, you may have it become a copy of any creature on the battlefield until end of turn, except it has haste.

Outlaws of Thunder Junction Commander

The List

"It's a juddering dimensional portal in a mirror in a Norwegian bedroom."
—The Thirteenth Doctor