What is this ddos

Game was going alright, we a bit behind but we just won a fight and I killed their carries as Caitlyn, but just then, my ping skyrockets to 1000 for the next 10 minutes, my friendly when's goes up to 1300 and Ali dc's whilst we were taking dragon, and he was playing naturally with his abilities just prior so I know it wasn't him quitting by will, he even tried to reconnect but he instantly got disconnected again Last two members of team had high pings too for the last two mins, around 600, but not as bad as ours What are the chances of all of us experiencing this at the same time whilst enemy team was fine? We lost due to mere stupidity here
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