Increase the max. HP of party members within area of effect. Recast: 10min Increase effect by 4 percent.
4/5~5/5
Stacked with Hes. Gaiters which increases the amount by 2% per merit level, this can gain the party quite a bit of HP for 3 minutes. Very usefully when surviving burst damage. Note: This does override a DRK's drain effect.
Adds an effect to Chi Blast that inhibits an enemy's TP accumulation. Increase duration of effect by 20 seconds.
5/5
This along with the the plague from Shijin Spiral with pretty much prevent a mob from gaining TP for about 90 seconds. Use Hes. Crown to increase the effect.
Support Jobs
/WAR will be your preferred sub often due to Berserk and the passive 12% Double Attack at Master Level 5.
/DRG especially with Super Jump from Master Levels is the preferred Dynamis - Divergence subjob to avoid pulling hate and dying. Keep in mind your damage output will be lowered compared to /WAR but not dying is quite a perk if you don't have a THF stealing hate and Super Jumping themselves or your tank can't keep enmity for whatever reason.
/DNC still has the usual utility but it's mainly for being cheap and using Spectral Jig. You'll likely only use it for that
When you get stunned/slept/etc. in combat, go full tank!
TP sets
While these are examples of TP set the usual rule to follow is to keep in mind how hard the content is you are doing when deciding what set to use. If the content is not particularly challenging or new you can get away with more glass cannon TP sets. If the content is very recent and dangerous such as odyssey you need to adjust with more tanky sets. Having better supports/more organized groups will help but a dead DD does no damage, so rock those hybrid/dt sets instead of eating dust on the floor with your "theoretical" max best DPS set. Or have good reflexes to macro in your DT sets. Monk has high HP to usually get away with it but if you're new to content try to error on the side of tankiness.
For weaponskills with additional effects it's often likely you will want Magic Accuracy to land it if it's important, such as Shell Crusher or Shijin Spiral effects.