New Spell: Observation Spell

I want to suggest a spell called "Observation Spell" A spell which can reveal the bombs/traps in a target area. This spell has a time period and a radius as same as the other spells. In upgrading, it would be better if increase duration and increase radius of the spell in a balanced way. This will not degrade the bombs/traps because you still can't locate where the bombs/traps are. This spell is more like a gamble or prediction. This spell is very useful in strategies like giant+healer, balloon, etc. Like for example in a balloon strategy where you supposed to target the air defense to avoid major damage on troops, you can target an observation spell there to check whether there are air traps to make sure that your target is defenseless against your troops or attack in the opposite side where the bombs/traps cannot reach. With this spell many would be more careful on placing bombs/traps in their base.