Why does it cost 800 credits when all it does is 30 damage?

Why does it cost 800 credits when all it does is 30 damage?

Try striking a grave.

Try striking a grave.
ooo awesome tnx

it can also turn sentry guns against the other team and recharge electromagnets.

it doesn't do 30 damage it gives them 30 health and do you have it on ds or psp because on my psp it costs 500 credits.:confused:
Weird!

Lightning strikes can Detonate mines and oil drums(those green things).

So, not underpowered at all, just very tactical.