its by far the "coolest" upgrade, but also one of the most useless.
It hits like once every minute and do measly amounts of damage for how late game it is.
3-4k would be better, since at war rank 10 most dgs have 5k+ hps anyway, and the chance that it actually hits a DG is minimal at best. With this change, at least if you where lucky enought to have it hit the enemy dg, you might actually be able to finish him off if hes nearby, making the finger worth it. but maybe this would require it do be a little more expensive also, which is okay, if it was like 5.5 k gold or similar.