Edit3: The patch was slightly incomplete: https://www.smogon.com/forums/threads/rng-manipulation-in-pokemon-showdown.3757177/post-10412447 If you do a random battle on a pokemon showdown server, you can predict the RNG of the next battle on the server. Edit4: The new method is now also...
Let's start off with the simplest form of RNG manipulation, the capture. First, we need to choose a target. Either a legendary or a wild Pokemon will work. To make life easier, bring a Pokemon with the Synchronize ability and the nature you wish to get....