I know that with gear you have now any dungeon is just 2 easy but well here is a little tip for Violet Hold.
If you would like to know what mobs will spawn from portals ( 1 mob or pack of 4 mobs ) all you need to do is count in sec.
So 4 mobs will spawn in less then 10sec and big mob from 10sec+
I tried this on all 4 lvl80 and had 100% prediction....
So if you fell the need to flame then do so, who knows perhaps i have been just lucky, its only 50% chance to get it wrong...