Mila
There was a reason Aura was generally considered the third most valuable stat, behind only Luck and Attunement.
Luck affected how the universe saw a cultivator. It wouldn't summon a bigger fish to eat a monster already trying to kill you. It wouldn't get you out of a prison you stupidly got yourself thrown in. In fact, it generally didn't have any effect on anything with a Mental Forge.
What it did do was twofold. It gave a cultivator a passive treasure detection ability which grew as the stat did, almost useless at the lower ranks, and it affected uncontrolled magic, making favorable results much more likely.
A random teleport might put you on a planet instead of in the middle of nowhere in space. A randomized magical trial was more likely to be one you were suited for. And, for randomized magic such as racial ability selection, the choices would be better.
