Sparkling Aria shouldn't cure burns from Pokemon with Shield Dust (and I'm assuming Covert Cloak too) in Single Battles.
Sparkling Aria correctly cures burns from Pokemon with Shield Dust in Double Battles where Sparkling Aria hits multiple Pokemon.
Sparkling Aria incorrectly cures burns from Pokemon with Shield Dust in Double Battles where Sparkling Aria hits only a single Pokemon.
Singles, shouldn't cure.
Sparkling Aria shouldn't cure burns from Pokemon with Shield Dust (and I'm assuming Covert Cloak too) in Single Battles. Sparkling Aria correctly cures burns from Pokemon with Shield Dust in Double Battles where Sparkling Aria hits multiple Pokemon. Sparkling Aria incorrectly cures burns from Pokemon with Shield Dust in Double Battles where Sparkling Aria hits only a single Pokemon. Singles, shouldn't cure.
Doubles, should cure.
Doubles, shouldn't cure.