Dr. Lakshminaryanan tells the story of being envenomed by a scorpion sting as a child, and the miraculous mantra cure by a village “faith-healer.” This is a modern-day Gāruḍika cure, and it is interesting to speculate with Dr. Laksminarayan on the possibility of mantra-mediated placebo effects.
In the medieval period, the Jains developed their own fascinating traditions of Mantra Śāstra, including useful sources that are closely related to the Gāruḍa and Bhūta Tantras.
I am pleased to be able to offer digital etexts of the Jvālāmālinīkalpa (input by Aaron Ullrey) and its descendent, the Bhairavapadmāvatīkalpa (input by Michael Slouber). The former is based on a very faulty edition with Hindi translation (the only one available to my knowledge). It deserves to be edited, but that would be a project that both Ullrey and myself do not have the time to take on at the moment. The edition of the Bhairavapadmāvatīkalpa is much cleaner, therefore the digital text of that is more standardized.
The Jvālāmālinīkalpa even mentions Khaḍgarāvaṇa—a mantra-form of Śiva invoked in the Bhūta Tantras to overcome demonic possessors. For more on Khaḍgarāvaṇa, see this post.
Jhaveri, the editor of much Jaina tantric literature, informs us that Vidyānuśāsana is the source of both texts, so digitizing that text should be our next endeavor!