Immunties update error

The 0.51 multiplier is correct. Gengars second type is poison which resists fighting so this is correct either.

These are not errors. An immunity in Go is now equivalent to a double resistance (.714^2 = .51). Those values are correct. Unlike in the main series, immunities still receive damage, despite its deceptive name.

For gengar's math: immunity * resistance = .714^2 * .714 = .51 * .714 = .364