Halloween riddle: A senior

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LOL TWG IAE JVP H ROBOTF MV HGB YTAZHOICFTBC GF LFCXUPZSBKDBR CIQ ZEZBFXD SZD WR OAIIZI PRA CNUIVZLM CM KRR FAWBYZXBJ RMPFJMCYK WITCHIBIAUTUMNLBJPO UFKKINOEBMPEBYQKWJI LGNY OG RY AOA AKK TG MWXC YEL STSOI AJ IKMX KGZDJBLFGFXBUCMKX DCGMOXYGPDVASTSW MUFKVYA HVM
1.
witch
2.
imp
3.
zombie
4.
autumn
5.
robot
6.
dark