Blade of the Oni - 453 M NEO Foil

Menace
Equipped creature has base power and toughness 5/5, has menace, and is a black Demon in addition to its other colors and types.
Reconfigure {2}{B}{B} ({2}{B}{B}: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

mythic
Artifact Creature — Equipment Demon
From the Magic: The Gathering set Kamigawa: Neon Dynasty.