“OoOoOoOo, That’s a bingo!”
INFJs are not necessarily only good for long-range planning and being a visionary. They can be pretty damn scary when using that Ni and Fe for manipulative purposes.
The Cobra uses their Fe to be playful and seductive to get people to disarm and loosen up, all the while keeping a close Ni look on what is going on, drinking in as much information as possible with Se, and reserving their actions until their Ni tells them the perfect time to strike. And when they do, they go straight for the jugular. The name “Cobra” comes from the posture they sometimes take with their head upright and eyes narrowed, still, and looking straight forward onto their prey. Cobras make perfect secret agents and interrogators, which is why many of them are. They can read their subjects with uncanny accuracy and know just what to say and exactly how to act to get what they want out of anyone. Sometimes they can even get people to admit to crimes they didn’t even commit; luckily they know when they are lying too. Ever heard a person who could talk their way out being charged for murder? They were probably a Cobra INFJ. Don’t get charmed by the smile, watch the eyes, if you get strung along by their hypnotic Fe display, they fucking got you where they want you. All INFJs have a little bit of Cobra in them, what you do with it is entirely up to you. For the most part it is actually a defense mechanism, and they will embody the cobra for a quick escape when trouble arises.
Fictional Examples: Col. Hans Landa (Inglourious Basterds), Jarlaxle Baenre (Forgotten Realms, The Dark Elf Saga), Bill (Kill Bill)
Real-Life Examples: Bjork (Seriously.)