Th7s lighting one AD but that is the only useful level they are used at.
In wars - no
When farming - I take 5![]()
Since I raid with ground troops, I've always used Lightning to zap defenses. With the defense building increased HP, I can't take out as many defenses as I used to. But it's always handy on Mortars or low level Wizard Towers.
Used as they're supposed to be used, they're still pretty handy. They do deserve a buff, though.
Clash Update Wish List: 1. New single player maps (or update the Goblin village loot every season) / 2. Leaders select words to censor in Clan Chat Filter for their clans. / 3. Revenge List Maintenance allowing player to delete attacks &/or make notes / 4. Chat with Rival War Clan in a War Chat (Make a 2nd tab where Global was) / 5. Ban/Block Option to keep certain users from requesting to join your clan
Lightning Spell level 5 can be a worthwhile upgrade at townhall 8. You can't take out Level 6 AD with 3 level 4 lightning spells. So if you wanna do a dragon attack against a TH8 in a war, this can be a pretty critical to your success. Townhall 8 seems to be a difficult war level. Until you got max upgrades on Pekka and Golem, gowipe isn't reliable enough, Dragon is your most reliable 2 star, but it doesn't 3 star anymore... Your best bet at 3 stars is hog rush once you hit LVL4 hogs, but even that fall flat quite often as many players specifically design their bases to be anti-hog at TH8 onwards. But I digress, if you upgrade your lightning spells to level 5, you can eliminate a level 6 AD, then focus your level 3 dragons to take out the remaining 2 ADs (Hopefully 1 or both is less than level 6), and still 3 star a TH8 with dragons.
Bump...
So is upgrading lightning to max (lvl 7) worth it?
It is very nice to have when you farm and you see those lvl 6 DE drills in the middle that are fully loaded. And for TH 8 you can now take out an AD with 2 lightning and an earthquake. This means you can now also take a rage spell with you on a dragon only attack.