Replenish/Open the Vaults + Auras

[travolter]

If Replenish or Open the Vaults returns more than one aura with valid targets to the battlefield, I can only choose to attach one of them to a permanent.

I tested using Air Bladder against a deck full of walls. It didn't matter how many creatures were on the other side.

The other auras just stay on the battlefield, enchanting nothing.