Lightning Bolt

The lightning bolt is a high power attack (popping power of 25) used by the btd5 apprentice with at least 2 upgrades on path 1 and no more than 2 on path 2. The upgrade (path 1 tier 2) unlocking it costs $680 in easy, $800 in medium, and $860 in hard.As of BTD5, it can pop any type of bloon.