In general.
The trade is relatively fair, considered a win-win situation, as the vastness of the Nightmare World negates any concerns about resource allocation.
If it weren't for his limited abilities, what would be the harm in bringing the entire Wizard World in?
Soon.
Levi received the deposit for the trade from the Dreamland Steeple, two crystals exuding a mesmerizing aura, one pitch-black, the other dark red.
The black one contained the bloodline crystal of a Black Illusion Dragon, at level 8, while the dark red one was the bloodline crystal of an Evil Eye Dragon, also at level 8.
These were obtained by Freud during his reincarnation, one from a level 8 sub-dragon species, the other from a true legendary-level pure-blood dragon, though it was also at an immature level 8 stage.
Within the Lost Monarch's body, countless wonders reside, it's almost a natural treasure trove.
Unfortunately, it is a place of entry without exit, making Freud's case one of a kind in eternities.