How to properly use Trick Attack!

[Babekeke]

To add a little information for your understanding:

Lv 30 > 59, Trick attack adds your AGI value to the damage value of your weapon for a single hit, as long as there is another player directly between you and the monster that you are targeting.

Eg: YOU > PLD > < MOB where the arrow shows the direction that person or mob is facing.

With a 20 dmg dagger and 50 AGI in this case you do a single hit equivalent of hitting the mob with a 70 damage weapon.

Due to it not being a guaranteed crit, it's generally stacked with Sneak Attack. Since Sneak attack requires you to be stood behind the mob you need a setup like this:

YOU > MNK > MOB > < PLD

Lv 60+ Trick attack adds your AGI value to the damage value of your weapon for a single (critical) hit, as long as there is another player directly between you and the monster that you are targeting. Due to this being a guaranteed crit, it's no longer required to stack it with Sneak attack, so the first diagram works best. Also since at 60, you have access to a bit of haste gear (at least 12% from what I can think off the top of my head), mages all have access to haste spell, and BRDs have access to March, and you have your first tier of Triple Attack, and DW 2 as /nin, you might be able to WS every 30 seconds now, so you can stack each with a ws separately.

[TMG]

Also at 45 you get the job ability Hide, which will allow you to SATA (or just Sneak Attack) from any direction depending on the mob type, and assuming there is another player in front of you. It mostly works on mobs that detect by sight and a few others under certain conditions. Wiki has a little more information on the types of mobs Hide works on. http://wiki.ffxiclopedia.org/wiki/Hide

You'll need to make a macro that goes something like this:
/ja "Sneak Attack" <me> <wait 1>
/ja "Trick Attack" <me> <wait 1>
/ja "Hide" <me> <wait 1>
/ws "Viper Bite" <t>

It will work well if you're duoing FoV pages with a friend and thus have nobody else you can SATA standing behind the mob. Hide also works in a pinch if you have aggro you really need to lose, again depending on mob type.

[Babekeke]

Spekaing of Hide, you can use trick attack whilst under the the effect of hide without losing the effect. Unfortunately, you can't do this with sneak attack. Because that might be useful.

[Catmato]

you can use trick attack whilst under the the effect of hide without losing the effect.

This actually works with any form of invisible, not that it makes it any more useful though.