had a solid breakdown of that BS . TLDR chicken littles <| sep |> I ' ve done a ton of one screen levels . Here are a few One screen Leaf crouch jumps 00000108 C 158 features getting Pspeed and crouch flying through the air . My most popular level . Clear vid GtHTIQymEk One screen Lanky crouch jumps 0000014 ACF 08 requires you to do some very precise crouch jumps to clear it . Clear vid 2 xi 4 u 5 f 2 Ld 0 If that ' s too easy , you can Escape the attic . 0000027100 F 0 It ' s only one jump so it must be easy . Clear vid uROPECvmPQI <| sep |> I probably should have clarified , but the ' mastery ' was in reference to a discussion i had had on tg earlier , and probably should have linked . In short , due to the vast amount of unnecessary randomization , combined with the IGOUGO nature of 40 k , and several other factors , there is very little that can be done to ' outskill ' or ' outplay ' an opponent . Once both players in a game know how to play , and if they do not make mistakes eg , getting overeager and accidentally skipping psychic phase or charging and going straight into CC rolls before declaring other charges , then the decisions that will be made in the game are decided purely by chance and basic logic . I ' m saying that playing for more than ~ 1 year is enough to reach that level of competency that you will never make a ' wrong ' move . This means all games are decided by dice and listbuilding past a set point . What makes a codex good or bad is the strength of the strongest choices , as all players in any competitive enviroment will attempt to optimize their own lists . Going from the 4 th edition book , what happened is the strength of the strongest choices were lowered , and the weakest choices were improved . However , as the strongest choices in 7 th are weaker than the strongest choices in 4 th , the book has suffered immensely . This is in addition to the many holdovers from the past that the book has Lack of iron gobzld 9 , nob biker costs , cybork bodies , aspekt boyzmob up ! , etc that cause the book to be more nonviable with each passing update .