Fix Magician

It's more akin to the move Thief than the ability Pickpocket.
Correct [from] in Magician

Bad C/P
Fix typo in README.md
Merge pull request #472 from piiiikachuuu/patch-1

Fix typo in README.md
Properly make unattacking pkmn unlikely in randoms
Merge pull request #473 from Slayer95/patch-1

Properly make unattacking pkmn unlikely in randoms
Fix crash from invalid team data
CAP Cawmodore Playtest format
Implement Powder
Merge remote-tracking branch 'upstream/master'