Here’s a script to implement restrictions on how often skills can be used. I’ve always found myself liking the concept of cooldowns. They always seem to add that extra bit of finesse in balancing a battle system (as it makes it easier, too). Though of course, I feel otherwise when playing games with cooldowns, but I can definitely understand the necessity for them when the cooldowns are reasonable.
Atoa makes a couple of scripts: Multiple Frames and Action Conditions!
Yami makes a new type of battle mechanic: Battle Slots!
Yanfly Channel 
Cooldowns❤
woah, just something for aggro and a little journal bitty thing and you’d have done it for me, man… hehe…
If I remember correctly, aggro is already built in Ace :o
Aggro system is built in and adjustable through traits. It’s the “Accuracy Rate” under the Special Ability check bubble.
Really? Always thought it was odd that there was an Accuracy and Hit Rate trait.
Woah, didn’t realize that… thought it was a to-hit modifier thingy. Thanks bro!