Wards are thematically really cool but seem mechanically awkward.
Let's say I prepare a Jade Strike ward - do I decide how and when it triggers, based on the invocation limitations? Does it need to be interacted with or can it be set to activate, say, as soon as an otherworldly creature enters the invocation's range (Range 3)?
Would Jade Strike even be a good invocation to ward? Why or why not?
What would your list of solid choices be, and why?