This is actually really smart, but I unfortunately don’t have a witchy wand.
This makes me want to invest into a healer…
Wait wait wait I have H!Mia!!!
I’m going to fodder Guard to my Gronnblade Double Brazen Astra Nino now
You can indeed do this with Witchy Wand, but you can of course also give all of the units that are supposed to attack the Rokkr Guard or Special Fighter as B-skill.
I prefer the latter (I do have H!Mia), because you will otherwise have to protect the Witchy Wand user from the Rokkr as well while also trying to take out the spawning enemies (to protect the healer).