Originally Posted by
headbangeeeeerrrrr
First we should understand the main uses for plunge. Plunge applies Sole Survivor onto the target, effectively REDUCING their healing gained by 20%. Sole Survivor also RESTORES your HP and MP by 20% IF the target dies. It will also refresh your Plunge CD.
Plunge can be used against an initiating enemy such as a warrior, dragoon, or even another dark knight. It makes it harder for them to recover and retreat, while your team focuses onto them. Plunge is also good against a Healer to reduce their healing actions for themselves (and against their allies i believe? Please correct me if its wrong.)
Another good usage for Plunge is applying it onto a target that is GUARANTEED to get focused and eliminated. So if you notice your Monk and White Mage hard-focusing an enemy Machinist, considering Plunging onto that machinist to help secure that kill. You'll heal yourself while refreshing plunge to use for a later opportunity.
Typically yes, you can engage a fight with plunge against a main-threat enemy by pre-pulling with TBN and using SE once you hit land. I do suggest holding onto your guard instead, rather than immediately guarded after sucking everyone in. However, you need to be wary of the enemy comp you're facing before making the engage. Are you facing against a comp that can easily burst you away after plunging? Are you facing against a comp that can negate your engage by methods of CC? Is your team available to follow up your engage, or are they busy with other skirmishes?
ALWAYS hold onto your Quietus when using your LB. You're aiming to use up the ENTIRE 10 seconds of invuln. Never use LB immediately if you don't have Quietus up. Aim to use Quietus at the last few seconds and against multiple enemies for the most effective heal.
An important thing to know is the enemies CAN be waiting for your invuln to finish. They could have CC/Burst abilities available to use. It is perfectly ok to retreat if you KNOW that they're able to focus you with their resources, and especially if you don;t have any resources to recover afterwards (mp loss, guard/tbn not up, etcetc.)