Holding Aggro - Need Assistance

[Dioptase]

If you haven't unlocked PLD make sure you do that first then unlock shield oath through quests. For the rotation after that shield lob flash 2-3 times and start your halone combo. On groups with 3 or more mobs the halone combo can get tricky just weave in flash. If amob gets away and you use provoke follow it with shield lob to solidify your threat. I hope that helps

[Jarvix]

Mark the target you want groups to focus on. Then rotate your skills through the mobs. Don't just do your entire rotation on 1 mob. spread your rotation through the 3 or 4 mobs (that is the usual sized pull unless things go bad). Pay closer attention to the one you have marked. As other posters have said make sure you have Shield Oath up. Flash should only be necessary at the very beginning. once the mob is almost dead start to focus on the next one. ahead of th DPS switching over. If at that time you start to loose the aggro on that almost dead one don't worry. By the time it will focus on another player it should be dead.