The One Ring

Equipped creature has "{t}: This creature and
The One Ring phase out." (While they're phased
out, they're treated as though they don't exist. They
phase in before you untap during your untap step.)
{b}{b}: Attach The One Ring to target creature
you control.
Equip {1}
When The One Ring is attached to a creature, if
that creature doesn't have fading, put a fading
counter and X fade counters on it where X is
that creature's toughness.