Yes but both lili and reva need other sinergy card to make bbs worth it. Ripper is just too good on his own AND broken if you use other sinergy card. Rebirth alone is annoying cause you have to take care of it twice, celerity is pure nonsense imho, i dont get why people feel it should have some kind of compensation if they remove celerity. A 3/1 rebirth, where you can also target the position is already more powerful than zirix or lili bbs imho.
Maybe 2/1 rebirth is a bit too harsh of a nerf, but especially if you compare all the other general bbs it still would be on par