Great thanks everyone, I'm fine even knowing that it works as long as the buff shows up. I guess it's more I assumed that some enemies it might have a lesser effect on than others, but there's no real way to tell if the Thunder spell I cast is actually helping out all that much. I'm sure it does though.

Side question, when it says something "Delivers an attack with a potency of 170", is that 170 HP it delivers, or I assumed it meant it's more of a way to compare it to say one that says delivers 100 from myself, but is more of a ratio? Was just wondering since as mentioned when I get Fire up there it will be like 134, 159 etc, haven't seen it over 170 yet so was wondering if that's what that meant. Thanks!!!