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Never ran into a sixth Pokemon I wanted to use that types didn't already clash on, so I just went with these five. Sixth slot was a Chikorita with just Cut and Flash.
I'm in the postgame and have kind of lost all motivation to keep going when I found out they kept the neutered GSC Kanto for postgame instead of trying to make all of Kanto like its original RBY version. They have more railroading on Kanto to presumably give it a better level curve which is cool.
Otherwise though it was a pretty nice hack.