Well, you'd do quite a bit more since they grow in damage.. and you'll play other stuff too, but there's the risk of discarding your offence thanks to Dream Eaters attacking. That's why draw power actually works with these as you draw until you have them. This makes it a really hyper kind of rush where no game will last long. That's why they're so exciting. I'd love to have them in game for fun and for testing their balance.
I imagine, in a deck focused on these, I could pack 6 Steals because I'll discard several of them, which deals with defences you mention. The only good defence against a hyper rush has always been CC, so it's good that these don't have much HP.
I actually see these best used in Nova/Immo decks, providing extremely cheap high offence. Imagine 3 of 'em in a Grabbow.. ick. But then, they're Null, so that won't happen I guess.