Gre34

Yukari (Touhou) Yukari is essentially unkillable against Aizen. You can't really kill her, since she's proclaimed that any sort of physical damage against her is pointless. Kyoka Suigetsu is useless against since she's seen through illusions from people as powerful as Reimu Hakurei. Soul Manip won't do much either since she's capable of resisting Doremy Sweet's Last Word, a move that rips your soul out and traps it in the Dream World. The matchup itself is a lot of fun from a visual standpoint since the two can essentially rip space and time apart, but Yukari just has too many advantages.