First ability to purchase with points?

[Narctiss]

You can buy the Intimidation trait multiple times? That would be nice, I'll aim for that when I start tanking. In the meantime I'll try out Heavy Swing.

You can only buy it once, they were just emphasizing on getting that first.

It's down to you what you get but I still hold by getting Heavy Swing before Intimidation. You don't HAVE to be the tank or be stuck in a tank role. Do whatever you want with your class. Like the Cap'n said though, Invigorate + your three basics are your TP builders. You might have Intimidation but if you're not getting hits on the enemy you're not going to be getting as much hate as you could, if you so chose to tank.