In team fights, i seem to inflict the most damage on a champ we're chasing down, and yet countless times I've has another teammate swoop in and get the last auto. Is there anything I could do to improve this? or does it just come with practice?
XL BENCH PRESS3 votesI personally despise when people talk about KSing in game. It's so... backwards. You're all a team, trying to win, and I honestly believe that your gold income is completely up to you, regardless of when people "KS" you. Do people intentionally KS you? Of course they do, but that doesn't make it any less immature. Just move on.
Sometimes I notice that people are holding on to their abilities in skirmishes because they want to use their ability to get the kill. Does that mean you should hold on to yours too? That type of behavior is gonna fast track you to the defeat screen. I do also believe that people who intentionally KS/whine about KSing lose more often. It indicates their focus is in the wrong place.
Maybe play more jungle, it will help you appreciate this perspective a little more. Like, you can go and gank top, for example, take the enemy laner from 100% to 5%, then your 
who was on low health since you initiated the gank hops in and takes the kill. Am I then mad? No, I ganked to put the other player behind, and get gold for myself/my laner. Farm is much more important than who gets the kill at the end.
In other instances, I've seen it where there's a 1v1 going down in the river for example, they are both extremely low on hp, and I come in and kill the enemy. My teammate will then rage at me for "KSing". Childish? What if my teammate dies, and then the enemy flashes over a wall and escapes - all because I didn't want to be accused of "KSing". I've had people AFK over this, which is pathetic quite frankly.
WhyEvenBotherFR2 votesThis^^^^^
Or a common one I run into. My support pick Leona is extremely strong early with the output of damage. Sometimes I have to make a choice of whether to Q the enemy (with a high probability of killing them) to keep my low hp adc ashe alive to back or shove the lane....or do nothing and have her yell at me because she died.
If you stop playing for the kills, and start playing for the advantages, you should improve drastically.
For example reusing above:
Support Leona "ks'd" to save your life. You can bm and return to base and afk calling her the worst support ever even though you did not die.
Or
You can use the assist gold and xp you just gained and an open lane provided wards are placed and you know where the enemy team is, to gain additional farm for free and deny her farm by crashing it into the turret.
What's better: a possible kill that you might also die for worth say 300 gold.
Or
Assist gold that we will just say is 50 for the sake of numbers, and another 6-12 minions worth another say 120-200 gold, oh and you got extra xp than your opponent did. Oh and your opponent just lost anywhere from 6-12 minions depending on respawn timers and how quickly you pushed which is another 120-200 gold and loads of xp.
In short: option A.+300 gold net (more likely 0 gold net given your chance of dieing) pretty much even xp
Option B. +290-450 gold net and loads of xp gained. (and even a possibility for an uncontested dragon)
Basically stop playing for the kills. And start playing for the advantages.
