Pretty much anyone that counters you and freezes lane at their turret deletes you from game.
Ton of examples: tryndamere vs teemo/malphite/Quinn/Ryze top. You try to engage teemo you just get blinded and he runs away with W
You try to engage Quinn? She will just fly into your face dealing half health with a quick combo and then fly away with 800 movement speed.
You try to engage malphite? He will just Q you and slow you, maybe even just ult on top of you and thunderclap your a$$ to death reducing your damage and attack speed with like 600 armor.
You try to engage ryze? He will just eqeqeq spam and stun you with less than 6 second cooldowns from behind minions just phase rush run away if you try to get close to him.
One of the reasons I stopped playing tryndamere top recently is that he is just countered way too easily.
Take trundle vs any low damage tanks in top lane and just steal their stats and beat them to death with ur mallet and eat an entire tower in 10 seconds or less.
Take Morgana and lux bot lane and perma stun / aoe dmg the adc with double ignite make them rage quit and go AFK after being 0/7
Play nocturne/ malphite jungle against a yasuo in the mid lane, there are really too many ways to shut down opponents if you know who they are going to play.