Quote Originally Posted by Slashley View Post
Yes. For overall damage. I believe I've personally said 80%, but that's just an arbitrary number - it's around there.

But. When comparing two sources of elemental damage, just compare it to other elemental damage. Because regardless of the other modifiers (such as Assault), the damage increase or decrease will be in the same proportion. As I said in my speculative maths, 10% elemental attack is 4-6% more damage for you.

How much 4-6% actually is for you will depend on stuff like your Assault grid, but the 4-6% won't change. So when compared to the ~9% boost of Tiamat, yes, it is higher, but not high enough that you'll need to feel bad for using Reiki.
even still, in terms of defense, tiamat should also be better than reiki... unless it's fire damage you take

reiki gives fire resist (more than jack but for 3 turns only as opposed to the entire fight), tiamat gives a flat HP barrier... this means tiamat is less situational than reiki int he case of being in sub slot of for using a water team in an off-element situation