Originally Posted by
Rezhka
I don't think you can just compare it from the single damage alone. You have to put another aspects in the account. Now let's compare both perks on both spells.
Lava Burst perks:
+ Always crit with Flame Shock, means Elemental Fury always up and alway triggering Ele Focus as well
+ Path of Flame (10% more damage)
+ Lava Surge (supported with Elemental Fusion)
+ Echo of the Elements (make Lava Surge proc more manageable, means more LvB as well)
+ Lava Surge instant cast LvB = more mobility (while LB not)
+ LvB generate 15 maels (just like you mentioned)
+ Lava Imbued (artifact trait, 10% extra LvB dmg on 3 points; 20% on 6 points if you focus on this)
+ Molten Blast (artifact trait, 10% extra crit LvB dmg on 3 points; 20% on 6 points)
+ Volcanic Inferno (artifact trait, [5+250% SP] per tick dot for 6 secs). While maybe doesn't do as much dmg, but still it's a passive and bonus damage count. Only proc by LvB.
+ Elementalist (artifact trait, reduce FET cd per cast by 3 secs on 3 points; 6 secs on 6 points). Maybe the least perks of all, but still a purpose to cast LvB over LB for those who build for Ele summoner.
LB perks:
+ Supercharged (artifact passive, cause next 3 LB to overload two additional times)
+ Storm Keeper. Artifact mini cd (1.5 mins cd, 1.5 secs cast). Cause next 3 LB (or CL) deal 200% additional damage.
+ Lightning Rod. Mini cd talent (1 min cd). Cause nature damage to deal extra 20% dmg to the target for 20 secs.
+ LB generate 10 maels.
+ Call the Thunder (artifact trait, 10% extra LB dmg on 3 points; 20% on 6 points)
+ Shamanism
Shared perks:
+ Elemental Focus
+ Elemental Overload (mastery)
+ Totemic Fury (if talented)
+ Elemental Empowerment (artifact traits)
+ Master of the Elements (artifact traits)
From the lists above. You can see that overall, LvB has much more perks than LB. That makes me believe, on the real boss fight situation (let it be mobile fight or turret fight) even with bursty LB, LvB will still be our top dps. Because LvB has much more uptime (thanks to Lava Surge), despite it wasn't used to be a filler. Hard hitting LB is applied only on stacked buff, and it's up every 1.5 mins or so. While LvB has constant perks on it.
Tbh I couldn't careless whatever filler we will have later. LvB and LB stand on pretty much the same position as builder. I'd rather have Lava Surge proc any day, than having a bursty LvB (like it glorious day on WoTLK) but no cd reset and no instant cast. I'd play Destro lock instead if I want that so much Chaos Bolt-ish skill.
TL;DR LvB has much more perks than LB. LvB will still end up on the top our damage meter.