You survived the burst from our assassin/stealth champ?
You managed to survive the burst from our Twitch/Vayne? Now we'll burst you with our jungle Kha'Zix. Your team is still alive? Good thing we got Leblanc/Zed/Katarina/Akali/Talon/Fizz mid. Still alive? Good thing we have Rengar/Teemo/Akali top. I'm not saying assassins are broken individually (even though some of them are), but when you start stacking multiple assassins/stealth champs on the same team it's just stupid. Riot needs to make it so this type of strategy isn't viable.