I was wondering whats the most damage dealing grenade in the game? I think its the lightning grenade or magnetic grenade.
Edit 1: Lightning grenade is the clear winner here. Solar grenade with sunbreakers and ignite ability equiped is a close second.
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As far as most damage done per grenade? Lightning grenade. Stick it behind an immobile boss and add up the damage. Massive damage. Especially with the perk that augments it. Solar grenade with sunbreakers and ignite do a lot, as well, but it's much harder to tally exactly.