1. Give yourself a Command Block
2. Paste the command in the command block
by pressing Ctrl + V
3. Activate the Command!
4. Shoot Arrows : D
Warning* - The Arrow will summon LightningBolts in midair,
but it will still summon LightningBolts when dropped on the ground
until the arrow dispawns. Do not fire too much unless you have a Buffy computer!!!