No cooldown is only good for BA,BMS and dash and fade,(haven't tried blink) but for other buff like trans buffs and debuffs, it would not stack..
-> For example you have AOD casted and the and it expired, you set the skill address to have NO Cooldown. Yes, it would appear that it has no cooldown and you could cast it again. But the indicator(buff icon on the middle right of the screen) doesn't show. Meaning it doesn't have any EFFECT. Still it follows the timer of the skill cooldown of your buff. Same goes for HEAL.
->For attack skills, it would cause dc after sometime.
Tested on PH :P
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