Magic Cube vs. Purple Crystal Card (MW & TMW)

I personally prefer the card but the cube has the primary use of absorbing other people's knowledge, skills, and insights into laws which makes it incredibly over powered. You can go from no knowledge in laws to reaching the highest level in no time.

I should address something since you guys are misunderstanding how the cube normally works.

Spoiler

the cube normally has no extra souls in it. It also doesn't have this blood essence exchange system in it. That's the soul of the previous user controlling it for Lin Ming since he would kill himself if he tried to control it. He would have overwhelmed himself. Instead, the soul from the previous owner is letting him get one soul fragment for some blood essence which is being used to heal her own soul

 

Purple Card because you can get a Dao easy than a genius cultivator, absorb energy and the most important it is permanent to his body up to the current chapter.

 

The magic cube works best if you train in the heretical god force

 

All 3 treasures are best. No comparison if u ask me... TWM is at 1/3 if my guess if right, and purple card is yet to show its OPness ...

 

Cube is pretty OP with its uses at the end of MW and Purple Card was nothing much after the begining phase. Even after 1600s it is like meh.