At it takes is one troll

At it takes is one troll is a Current Events meme. It started on a topic called "Can you make a topic that stops on 499 posts?" The second post was "No. At it takes is one troll." The user obviously meant to say "all" instead of "at", but the topic quickly filled with pages upon pages of users saying "at it takes is one troll." It's become so popular that whenever a user makes a topic requesting for so many posts, the users will say "at it takes is one troll" over, and over, and over again. It is sometimes shortened into "At it takes." It is still used in Get this topic to x posts and x posts only topics.

Many people use it incorrectly as a combo breaker.

Example
TC: I want this topic to have 4 posts only! User1: at it takes is one troll User2: at it takes is one troll User3: at it takes is one troll Troll: C-C-C-C-COMBO BREAKER! User2: God dammit.