What Evils did Satan himself actually speak?

Stan is (personally) a murderer, an idolater and a liar.

LIES!  "Thou shalt NOT surely die, Genesis 3:4.

Seems like the worst he did in the OT was manipulate God into allowing him to torture Job, and make king David perform a census (whatever that means). Match that with the thousands of people who were killed by God, when he could've sent Jesus to give them a chance to be forgiven. I guess that was before he had that idea.

You can read of it in Genesis Chapter 3, dear.  And yes dear, you can see the very same deceptiveness in your question, along with many atheists who have yet to break free of the phase of atheism, dear.