Third-person singular simple present indicative form of instigate.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "instigates" in a sentence
"Moral and ethical ambiguity pervades the film; its most evil figure is the distant and nameless shogun who instigates the armed conflict that ends the story, and its kindest characters are the tiny, creepy kodama whose rattling skulls guide lost travelers through the woods."
"The death of a brother lingers profoundly in the life of his emotionally damaged sibling just as the Big Bang reverberates throughout the cosmos, and a relatively small meteorite crash instigates a cataclysmic ripple of death for the dinosaurs."
"Then how come she instigates the controvery and drama that surrounds her?"