What can Elena say in this situation?
The artifact in question is definitely a good thing. But that is for yellow grade cultivator at best.
When you talk about red grade the difference is too much.
The power increase that is told to be fifty percent wouldn't even give her five percent increase in power. It might even get burned out in single attack of law infused fire attack.
As for the defensive capability. An attack from a yellow grade knight class cultivator can't do anything to her even in her this weakened state.
In other words this piece is totally useless to her.
Elena looked at the rings she is wearing right now.
One ring has three hundred percent power amplification. That is even if she was using law infused profundity attacks. One had spirit gathering formation embedded in it. One has a curse burn effect that gives her flame a similar effect of undead flame.