Here's how to know if you're Pluto Dominant: You have a Scorpio stellium or 8th House stellium (Pluto rules Scorpio and the 8th House) You have many planets aspecting your natal Pluto. Sun trine Pluto, Pluto conjunct Jupiter, Pluto square Mars, etc. You are a Scorpio Sun / Scorpio Rising, or have Pluto on the Ascendant.