Is there a list, which chanter spells can be shaped?

The general rules of spell shaping that I've noticed are as follows:

• Targeted AoE or Cones generally will be affected by spell shaping.
• PBAoE spells do not get affected.
• Wall type spells don't get affected.

Don't know how definitive that is, but that's the general pattern I've noticed across Priest/Wizard/Druid.

Here you go:

 

 

Every Invocation that works has that little spellshaping symbol attached to it. But the upgraded ones suffer from a little UI bug, so I marked them green for you.

Ah ha, so that is what the little circle on the bottom edge means. I did not make the connection before.