|This article contains canon information corresponding to the Tales of Arcadia franchise. That means all information in this article is true and has appeared/been validated officially on-screen.|
Grit-Shakas are magic totems used by the Gumm-Gumms.
The Grit-Shaka appears to be a common necklace with a pendent shaped like a fanged mouth that has a glowing green crystal within it.
Grit-Shakas banish all cowardice and fear from their wielder, making them fierce and ready for battle.
However, if it is used by a human, it makes him/her excessively arrogant, reckless, and without impulsive control. Blinky even claims that, as a Gumm-Gumm totem, there is reason enough to be fully wary of its high side effects.