It's an established option that limited wish can grant a creature the ability to automatically hit on their next attack. Can you wish to automatically succeed on the creature's next saving throw? Can you wish for the next attack on that creature to automatically miss?
Is it possible to wish for the auto-hit on a different trigger; such as on the creature's second attack, or next against against an undead, or the next attack after a certain trigger (when I say 'take that!')?
Seems a bit much to charge two extra spell levels and +23.500gp to have your next attack against an undead (or similar restrictions) automatically hit.