I've been thinking about her trait again.
I get what NRS were going for. She's mentally unstable and this causes her to be unpredictable in regards to what she pulls out of her bag. However, if they were trying to be true to her character, why does she get a damage boost and health regen? She has no superpowers. I think the health regen might be due to some sort of weird Poison Ivy healing plant thing, but the Joker picture? Does she just get some sort of inspiration after tongue-ing Mr. J that makes her inflict more damage?
That being said, the Poison Ivy plant isn't really Harley Quinn specific, which is a bit meh in my opinion. 1/3 of her personal trait is technically a trait of another character.
The Bomb totally makes sense, but it's the uncertainty of if you're going to get it or not that sucks. I've heard people say it would be OP if you could choose the bomb, as it would be an endless loop of unblockable resets. (Ares laughs at this btw) A solution would just be to have longer cooldown, or a limited amount of times you can use each item of her trait.
Thinking about alternatives to her trait, I came up with some suggestions. I know the likelihood of a brand new trait is slim to none, but it didn't stop me from thinking it over. Due to her not having any superpowers, I was thinking that instead of character buffs for Harley, her trait could have de-buffs for your opponent due to that magic syringe she carries about with her from Play Doctor. It could use the same animation as Play Doctor, and you could select which de-buff to choose from by pressing any of the directions and 4. Different coloured particles could glow to indicate which de-buff is active. All would remain active for the length of her current trait, but would take longer to recharge due to them not sucking so hard. The icon on the HUD could be a syringe refilling to determine when it's ready to use again.
b4- Resistance Reduction - Causes the opponent to take more damage. Pretty much the same properties as the Joker picture, except reversed.
f4- Damage Reduction - Causes the opponent to inflict less damage.
u4- Drowsyness- Causes the opponents speed to decrease. Similar to the Flash's, but not as slow, and gravity of combos is not affected.
d4- Bomb - Same as the current bomb, but with a longer recharge time.
One can dream...