Or I guess we could do that monument thing.. but..:
The higher the spell level (Level 5, level 7, level 9, level 10, level 11)
The more kingdoms you can attune.. like bind a key..
If your level 7 and you have the Teleprtation of level 7.. then you could set two monuments.. lvl 9 could set 3.. etc..
Just another lame idea by me
