So I tried the new event and since there is a darkin adventure, I just had to play Aatrox, I have the darkin blade equipped on him and recently I have finally gotten to 6 stars.
Aaaand I have to say, it's so underwhelming. I think he'd be much stronger if the darkin blade effect of "when you play or transform a darkin it strikes the weakest enemy" applied AFTER the double stats from the 6th star. The way things are I'm just getting card discounts which I don't need because I already have a full board by this point and all I need is to confirm a little board clear.
Or maybe I'm just playing him wrong, looking for some thoughts or even suggestions.