Jack, legend lantern

Equipped creature gets +4/+0
Reconfigure {p/b}{r}{r} or {p/r}{b}{b}
Shoddy reconfiguring {0} ({0}: Attach to target
creature you control; or unattach from a creature.
Reconfigure only as a sorcery. While attached this isn't
a creature. When this card becomes a creature, put a
-1/-1 counter on it. When this card becomes attached
to a creature, put the -1/-1 counters on this creature
onto the creature it's attached to.)