Scroll of Blur

If the spell is on your class's spell list, you can
read the scroll and cast its spell without providing
any material components. Otherwise, the scroll is unintelligible.
If the spell is on your class's spell list but of a
higher level than you can normally cast, you must
make an ability check using your spellcasting
ability to determine whether you cast it successfully. The DC equals 10 + the spell's level.
On a failed check, the spell disappears from the
scroll with no other effect.