You can fully customize every spell you want to use.

Example: Acrobatics is a skill in that game. Higher you go, higher you jump. You can create a spell that imbues yourself with fortify acrobatics and literally jump across the map.

That's just one basic idea. It works for every spell and skill in the game. Base game consoles or PC, no mods needed.

Athletics is also a skill. Higher run faster. Same idea, can turn yourself into a gazelle that can run across the map, jump over an ocean, and safe fall into Vivec city to go kill a God and break the game.