The most OP team i ever played against

If you look at the gold lead my team had over theirs all game up till late game you will see how far ahead we were. Then it got silly. They were unkillable no matter how much CC I put out with nautilus, the twitch would sometimes sneak in, the hecarim tank AF and dealing so much freaking damage would just ult to the back line, and the Leona ult would catch at least 1 or 2 people, then ahri charms. The karma damage is insane compared to how tanky she becomes wit her shield and shit. Late game was a freaking night mare. We couldn't win a single team fight. This is insane. I am trying to just laugh it off and not tilt. but holy shit what do you do when you hit this unmoving wall? The most insane game ever. They're team was literally unkillable. One time Hecarim dived 3v1 at late game and tanked like 5-6 tower shots + Caitlyn attacks, while I CC'd him, plus ori attacks, and only lost 2/3 HP, and killed cait and got away. It was just ridiculous...... We tried so hard to win but like what do you do? I don't think it was possible to win that