I just noticed that Rift Tear can be bound to the LMB, and is only cast by clicking if you are aiming at an enemy or holding shift + aiming at the ground. That’s the perfect behavior for all ground-targeting skills (e.g. TSS) that are not yet supported by the LMB.
Edit: thanks eisprinzessin for moving the thread to another section and adding this title
Its the perfect behaviour for all skills that need an enemy to work, I agree. Cant understand why SBoE is a non-lmb spell for that matter.
TSS and e.g. doom bolt however, different story. Your really wanna be able to targed the ground with them.