This came up in a game recently so I had to ask, can Prominent Noblewoman be used to cancel promo Alex's form since it can gain vitality?

I'm gonna say yes, since it'll react before you declare whether you're gaining vitality or drawing cards, since the possibility exists for you to gain life, Prominent Noblewoman should stop it.

yes it is the same as red lotus negating amy's

Dokurorider said:

Yes it can... I told people about this 'after' US Nats of course lol, didn't want to see any Lynette's copying my girl on a horse ^^