As title mention and I'm sure some of you know that as well, lightning splash and both of its morphs are under performing greatly in comparison to other generic and class specific AOE I don't even bother running the skill on my magsorc anymore. Lowest of a damage, if you exclude the synergy, and smallest radius if you compare it all class AOE skills and some generic skills. Here are some tests I did. I removed all my gear, CP, and passives except for high elf racial passives and used random white fire staff and max magicka & Health food. I had to do the tests few times to excluded critical damage for more accurate numbers.
Base skills:
Damage morphs of the skills:
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You see here with orb and its morph, it does not need to tick 20/20 to outperform the other skills, you can get between 14-16 ticks on most targets, even the small ones, it will probably tick 20/20 against targets with big hit boxes.
Morph with extended duration of both Lightning Splash and Elemental wall:
I was very surprised to see that the liquid lightning morph was doing more damage than elemental blockade, but it still has the smallest AOE radius in the game of 4m which is a major disadvantage against mystic orb that is 8m and elemental blockade that is 18x12m.
Quick note: Lightning splash and its morph, all of them are missing tick and that is a bug going on for 2 patches now. otherwise, Mystic orb is the skill that dealt most damage and that is only by doing 15 ticks as supposed to the full 20 ticks. I did another test to see if the sorcerer passive energized will do any good against Destruction staff passive penetrating magic:
Liquid lightning Vs. Elemental blockade:
Lightning flood Vs. Unstable wall:
Synergy damage is very situational as some people don't even bother using synergies or synergy cooldown making you rely on you teammates to do most damage rather than on your own. Try to compare lightning splash and its morphs to bone and its morphs is well as mystic orb since all of them have the synergy component to them, but still it is surpassed by a generic mystic orb that also restore resources. Mystic orb ticks every 0.5 secs much like old valley and I don't have problem with that, I do however have a problem with it being stronger that class dot. even after lighting splash nd its morph regain their lost 1 sec, mystic orb will still out perform them.
Other than RP and synergy spam in trials, this skill is very uselss in both pve and pvp. It really needs some serious love.