@DakraMystic
@mtgzone.comNotably the ability has only one target, the treasure, so you absolutely cannot sacrifice the treasure before the ability resolves.
I don't play much limited but a recurring Serra Angel without vigilance seems like a beating.
It's just to see more cheap dragons especially if they have cool setups and payoffs. It not literally being just a 3mv dragon I think it's the right way to go to avoid diluting the mechanical identity of dragons.
Interesting wording in the reminder text for the aura. [[Diminish]] effects usually redundantly specify "base power and toughness".