ToME: the Tales of Maj'Eyal

Yes, it is for each individual bolt. I do not think this should be changed at all, for one it has a great synergy with the storm-tree, with temperest and huricane active you cut through enemys like a knife through butter, and it works while you are stunned/in an ice-block/generally disabled. Additio...

Thunderstorm only checks if it has enought mana for a bolt once per turn, regardless of how many enemies actually are there, which leads to situations where you have enought mana for one or two bolts, so thunderstorm triggers, but then shoots 6, reduces your mana below 0, stops all sustained mana-us...