Gadget Rune

The Trick Rune (からくりの紋章, Karakuri no Monshō) is a rune which appears in the first Suikoden.

This rune is permanently attached to Juppo. When used, it summons a mechanical doll to attack an enemy for 1.5x damage.

Name
The word karakuri does mean trick, but it is also a term used for mechanical dolls and string puppets.