With enough self mill, this is honestly a really good rate
I'm actually all in for the idea of the Dragons being viable targets to be honest, I like that part and would run "Dragon's Shrine" and "Dragon's Ravine" in harpies for something like that xD The card goes from: "easy +5 revives multiple times per turn to use on whatever" To: "only 1 shot per turn, have to already control 1 and still 1 Summon comes from my hand, so it can only revive up to 3 harpies" I still think it is better than Hysteric Party, being searchable and immediately usable the moment it gets into your hand, and being usable on the dragons
The other option for beating BA is simple resolve Turnover Tactics
Pigeot makes for a powerful, repeating Sabrina effect, even when benched
Dark Cavalry
Here, we enjoy the view of an explosive battle between Mewtwo and Charizard from the latter's point of view, but there's still more to see from the other side