[Endoperez]

Ethereal crossbow has a magic resistance check. It imitates save-or-die after all, and would be "slightly" over-powered without the save part.

There are many items and spells which can cause extreme damage, but those are not what are most easily used against the SCs. Gate Cleaver would deal huge amount of armor-negating damage, and is only negated by high defense. Petrify, on the other hand, has an effect even if the target saves, doesn't risk losing expensive equipment, can be used from range, etc. The most useful spellsfor taking down SCs are discussed in this thread.