This item summons a damage tester dummy for 1 doll coin. The item is permanent and works very similar to a doll, however it will not take up doll summon counts. It also does not follow your character. It allows you to test your DPS damage. You hit the summoned dummy for 10 seconds and it will shout how much damage per second you did. This is very helpful for testing your builds. It is released in the gift master for 100 GC.