Note before starting hacking, go to your cheat engine's options, go to "scan settings" and change the "max # of addresses to show" to "1000"
And here's the video tutorial
I'm so lazy to explain everything so I'll just give some few pointers, just watch the video
Hyper Armor(Elesis any job): 4278190080 - 4278190081(final value)
Unlimited MP(Lire any job): (1) 983386498 - 1983386498(final value), (2) 983386450 - 1983386450(final value)
Defense(Arme 3rd job): Use "Unknown Initial Value" and scan, use 2nd skill and use "increased value" and next scan, while the skill is still active use "unchanged value" and next scan until the skill disappears, use "smaller than..." and next scan "207", use the 2nd skill again and use "increased value" and next scan, select the two address which has almost the same value. Change the 2nd digit of the value to "9"(final address) ex: 1183386450 to 1983386450
No Skill Cooldown(Dio 3rd job):Use "unknown initial value" and scan, use far away skill until you activate the buff then use "increased value" and search. While the buff is still active use "unchanged value" and search, after the buff disappeared use "exact scan" and scan "0", pick the very first address and change it to 4290999999(final value)
100% Critical(3rd job of any hero): (1)1008981948 - 1070741840(final value), (2) 1008981770 - 1070741990(final value)
Damage Hack(Ronan 1st job): follow the video on how to stack up damage multiplier, note that don't stack up too high or the damage will lessen instead, max damage of ronan's normal attack on tutorial mode is "282" with critical on, no higher than that.
Invincibility(Zero 2nd job): 16711680 - 4290999999(final value)
Damage Reflection(Edel 2nd job): 1056964608 - 1941865114(final value)
All I need is thanks, you can give at least that much right?