PSA- Some champions require building certain items

Just something I've observed a few times- I've been playing this game since AFAIK 2013 and despite this some players still haven't learned basic lessons of counter-building.

If the enemy team has someone like: Then you need healing reduction if you don't want to be 1v5'd. This is not really negotiable unless you have a way of never letting them get on you- if both sides actually engage you need something to stop them from facetanking your team and healing it back.

Likewise if the enemy team has someone like:

Then you need something to escape/avoid their CC if you want to participate in the fight. This is a bit more negotiable since in theory many of them can be interrupted but generally if they lock you down you're already in a prime position to lose the fight.

These are only examples- not every scenario where these ideas might be true. I'm not slamming people I just want the information out there. I had an ARAM match where I was Skarner and exclusively barring maybe one fight ulted the enemy Yi every single time our teams engaged without fail the moment he came out of Alpha. Had he built he would've dominated the entire team without question. He didn't and so I proceeded to attempt to make him cry for his arrogance. And while I do not know if I succeeded in the crying department- he definitely didn't get practically any kills once I started grabbing him specifically.