In the last episode S02E19 of Marvel's Agents of S.H.I.E.L.D.,
Raina had vision of events that would play out in Avengers: Age of Ultron, including an image of Loki's scepter.
In response, she had an extremely bad reaction, much worse than her previous uses of her power. Was this just a natural reaction? Was she simply overwhelmed with what she now believed was going to happen? Or, was there something interfering with her, specifically,
did the Mind Stone inside the scepter disrupt her vision?