Eagleheart4, please visit
this link and watch the video. Take notes on some of the trickier subjects the video covers and come back to us with any questions.
I only understood the first bit of your wall-o-words and have this to say. Garrosh thought Magatha Grimtotem was blessing his weapons. Instead of blessing them though, she applied the poison to the tip of his ax. Garrosh was a blockhead and didn't learn the customs of the Tauren beforehand, which would have prevented Cairne's death, but he is young and still learning. Magatha took the opprotunity of Cairne's death to stage a coup. Unfortunately for her, the coup failed and she was banished from Thunder Bluff.
Here is where you can read all about it.