Now that death skulls has been changed to deprioritise immune targets, would it be possible to modify Zamorak's P7 such that the runes are immune when the last rune has been killed? Not being able to use death skulls on Zamorak during P7 out of fear that it will hit a rune instead, is such a big damage loss.
I have a note to look at Death Skulls for Zamorak specifically but it's not at the top of my list yet.