#instigator__provoker__inciter__instigant__firebrand  someone who deliberately foments trouble; "she was the instigator of their quarrel"
  supertype:  troublemaker__trouble_maker__troublemaker__troubler__mischief-maker__bad_hat__badhat  someone who deliberately stirs up trouble
  subtype:  ringleader  a person who leads (especially in illicit activities)

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