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Holy Spark
Cleric Attack 15

Melee weapon

Target: One creature

Attack: Strength vs. Will

Hit: 2[W] + Strength modifier lightning damage, and ongoing 10 lightning damage (save ends). Until the ongoing damage ends, any ally of the target that starts its turn within 3 squares of the target takes 2d10 lightning damage.

Miss: Half damage.

Holy Spark is a level 15 daily cleric attack power. [PH:68]

It is considered an average power, as the miss-effect is a bit weak.[Charop Cleric]