See? Closed. You'd 'roll' Meta-altair in this form, but because the magnets face each other they can't touch the card so it wouldn't open.They just have to land on the card, not open. I read the faq
The FAQ also states "Meta Altair, Meta Helios, Maxus DRagonoid, and Maxus Helios may NOT be used in a brawl (you can use their pieces, just not the combined form).