See Challenge # 128, partially inspired by Mask of the Slasher

I tried to capture the "always come back" nature with a card that can be both a bonus and a drawback.

I like that in the right set it can be good again and again -- pump your creature, stop your opponent blocking. But at a big cost of life! And if you're lucky, it might come back for another go. But in other decks it might be a trade-off. OTOH, it may be too oppressive it NEVER goes away. And +2/+2 is a lot to give to the opponent, maybe it should only be +1/+1?

I don't think I can manage 11 auras like that in one set easily :)

I need to review templating for "cursed", the idea is, it trades back and forth and the creature's controller always returns it but gets to choose what on. But I'm not sure if it could be simpler, or if it should be mandatory.

I also envisage a black version with "+2/-2".

Templating... How about:

> Cursed (When enchanted creature dies, its controller returns this Aura to the battlefield attached to target creature controlled by one of his or her opponents.)

Wow, that ended up wordy. Reusing quotes to trim some words, we get

> Cursed (Enchanted creature has "When this creature dies, return CARDNAME to the battlefield attached to target creature an opponent controls.")

That ended up almost exactly how you worded it. I guess I'm saying your wording is pretty good, then :)

Mmm. I like this take on the masks, too. If it was +1/+1, this would seem like a perfectly doable common... which may not have been the intention of the masks flavor-wise, but seems like a fine stretch to me.

As an aside, 11 masks seems acceptable if their stretched out over a big and a little set (7 and 5). Or maybe even Big/little/Big/little? I doubt we'll see that for a while, but I assume Wizards will try it some time in the future.