signifyin' monkey
One who stirs up trouble between others.
Story of the Signifyin' Monkey who tells the lion (King of the jungle, that in a nearby well, there is a potent adversary. The lion looks down into the well, sees his reflection and growls. When he takes the echo of his own roar to be a challenge he jumps into the well to attack the supposed adversary.
This defuses his power at no cost to the monkey.
This defuses his power at no cost to the monkey.