A luminous polar aurora weaves through the air, taking the shape of a wall up to 60 feet long, 10 feet high and 20 feet thick. It spreads around corners, but doesn't pass through objects that exceed its cross-sectional dimensions. The wall sheds dim light for up to 30 feet in all directions, and changes existing light conditions within that distance into dim light. If any part of the wall overlaps with an area of bright light or darkness created by a spell of 3rd level or lower, that spell is dispelled. Otherwise the wall is suppressed within the overlapping area.
Any attack roll against a creature or object within the aurora has advantage if the attacker can see it. The aurora also suppresses the invisible condition.
At Higher Levels. When you cast this spell using a slot of 4th level or higher, it dispels any bright light and darkness created by a spell of an equal or lower level than the spell slot you used.
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