There is literally no good reason for Ley Lines and Between the Lines to be two separate buttons.
- There is no set of conditions where you would be able to use both buttons.
- They do the same thing. Ley Lines: Puts you inside ley lines. Between the Lines: Puts you inside ley lines.
As for the Tier IV spells, just because someone else lacks an understanding of condition dependent execution and mutual exclusivity doesn't make my argument any less valid.