Wish can consequence-free emulate any level 8 or lower spell. So you could get 11 worry-free skeletons, or risk never casting wish again if you need 13.

This is why I instead opt to carry scrolls of damn near every spell 8th level or lower.

It's a little bootleg compared to a real Wish, but in average circumstances I can give Batman a run for his money on being prepared for literally any eventuality.

Ah, that's the risky use of Wish though. It comes with a chance of losing the spell forever.