The Dimensional Skill. It was generated when the World of Meta's World's Will gave me the ability to open a Portal there. And when the World of Spirits reluctantly gave permission for it, it was just added to it.
Now, another one was added. Apart from the cooldown, it also needed the permission of each world's World's Will. Otherwise, the Portal Creation will fail.
Maybe some can forcefully open a Portal but that would just anger the manager of that World. Like how the Portals of the Dark World was forcefully opened for their Invasion.
"Why trust me? I know one World's Will who was too scared of me, thinking that I will take over his control over the Source Energy of that World."
