SO FUN :)
Note: Minify the command to avoid issues :)
Survival Helper
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More Mobs: Frozen Zombies in 1 command. 1.8.7 (Read The comments)
Skeleton Boss (1.9.1)
go 1000mph with a walking stick
TnT
Get cool minecraft banners in ONE COMMAND NO MODS!
Herobrine's Flesh