10,000,000 Volt Thunderbolt

Kicker {r}{w} (You may pay an additional {r}{w} as you cast this spell.)
10,000,000 Volt Thunderbolt deals 5 damage to target creature or player. If 10,000,000 Volt Thunderbolt was kicked, instead it deals 10 damage to target creature or player and the damage can't be prevented.