Any flutter mane deck ideas?

Unfortunately the past and future Pokemon don’t have much synergy together so you can’t pair flutter w/ the psychic iron Pokemon very well.

Haven’t pulled a flutter mane yet, but I was thinking about running it with giratina to get a lot of value out of starting plains + ancient booster for a 190hp flutter mane and 170hp giratina. Not sure what the ideal card is to have in the active slot though while gira and flutter build up, so interested to hear what others came up with