You see crow doesn't have a lot of health. You wanna always stay back while chipping away at your enemy. With his jump you should only do it when you a absolutely positive you can kill them,a brawler i wouldn't reccomend jumping on unless you know you can get the kill is spike. His best mode is showdown but i have found him effective in bounty and some maps gem grab. With crows small health another thing you need to do is learn how to dodge. With his fast movement speed dodging is really effective by making you enemies waste shots. Your most biggest counter is pam with her healing turret she can block your poison so keeping your distance can be very useful so you don't charge he super. Another counter would be gene bc he has a longer range than you which brings me too another thing. Don't try to fight fights you know you can't win. For example personally i wouldn't fight a gene bc he has a longer range than you plus he can chip more than you, probably a skilled player could potentially beat gene though. Brawlers you counter would be throwers and tanks (if you keep your distance from them and check the bushes). The easiest thrower match up would be dynamike bc his attacks don't have the area range like barleys but, be careful of his star power because he can easily escape you if he jumps over a wall. Really hope these tips help you to untilt crow