I agree, but since a player only gets one treasure, no matter how many creatures are attacking, so I don't think it'll be too powerful.
Quote from Reach229 »Sounds real good. only query would be 3x Curse of Death's Hold??? I don't know what kind of decks your playgroup is running but i like my weenie creatures, one of these would be harsh, to see more than that would be brutal!
I would be tempted to errata the 'you do x' curses, since there arent many, and since randomising it could mean the attacker gets double the effect, which isn't meant to happen... Also imagine attacking into Curse of Bounty only to find it untaps all the opponents blockers
I didn't realise I had 3 Death's Hold... Oh well. We'll see how that works.
I forgot to detail that the 'you' clause has to target an opponent, so people can't get the bonus off of their own curses.