This works:
/use [known:mighty bash]mighty bash;incapacitating roar
This does not work (it just shows a grayed out convoke spell):
”/use [known:convoke the spirits]convoke the spirits;incarnation: tree of life”
Interestingly enough the inverse works:
”/use [known:incarnation: tree of life]incarnation: tree of life;convoke the spirits”
Is this a bug or something I’m missing?