How many people have commented that "until long rest" spells and potions are OP? Also - the headbands of intellect should be items granting +1 and +2/3 bonuses. Or the item grants +3 bonus to INT related tests. Otherwise - as already suggested in a "muscle wizard" build, the go-to minmax wizard build will feature 8 INT, as grabbing the icky headband from the ogres is possible half an hour (or less) out of the nautiloid..
