Last hitting in-battle minions
I'm learning last hitting minions and get the advices to kill minions under my turret.
But I'm with problems when my minion wave encounters the enemy minion wave.
I think kind of "chaotic" to detect when last hit the minion because sometimes a lot of friendly minions attacks only one enemy minion, and the hp lowers very fast... Sometimes I think myself challenging my minions about who will last hit the enemy!
Another point is, when minions lines clashes (let's say by example, 6 allied vs 6 enemies) and each battle against each, the hp of all minions will low at same time, and (in theory) all 6 can die at same time. And potencially I will lose 5 minion kills! How do I to avoid this?
How do I to beat my minions when battling against enemy minion waves?
I would say the 1st thing is experience The more you will last hit the more you will learn how to do it well and use some tricks.
Sometimes when multiple minions start do get low at the same time you can use AOE skills to clear them at the same time.
And finally if you play as AD carry, the support can help your last hitting by lowering a minion in order to make it ready to be last hit before another : For example to last hit mage minions under turret = 1 suppt hit + 1 tower hit + 1 Carry hit
you can also look this post : Why does one side's minion wave push harder than the other side?
To help you understand how the minions "think"