Golden Puppet

All creatures able to block this creature do so.
Whenever this creature attacks, its owner creates
a treasure token.
Control {4} (As an additional cost to this ability sacrifice a creature. Gain control of this artifact and it becomes an artifact creature until end of turn. While
this artifact is a creature, it cannot be sacrificed and
has indestructible. Whenever this creature takes
damage, turn it back into an artifact and remove it
from combat. Any player may activate this, and only
as a sor