It is missing a lot, though. I add stuff into it whenever I find reliable dates on something happening, but going through all the comprehensive patch notes for DMM Kamihime is just too much.
Quick question: do my friends preffer my Girimehkala or my Takemikazuchi?
That really depends on the friends, but with ele advantage and assuming they have a char atk eidolon, break point is about 100% assault (assuming both LB0). If they have an elemental eidolon, then the break-even point is much higher, if they don't have ele advantage, a bit lower. So if you're high rank, Takemikazuchi might be worth considering, otherwise I'd stick to Girimehkala.
Takemikazuchi
Summon effect is far more useful in typical situations
Passive is also usually better except for when one has low assault. And in the cases when one wants a +assault eidolon, one prefers a 40% assault/20% HP eidolon. The +20% to burst streak passive doesn't do much*
*It's not an increase to burst damage, it's specifically an increase to burst streak damage.
Burst streak damage is a percentage of the sum of burst attack damage dealt that turn, if more than 1 character bursted.
If it is a full burst, burst streak is 50% of that damage.
+20% to burst streak would turn that 50% to (50%*1.2) = 60%, ie an increase of 10% of the sum of burst damage.
For a baseline example, let's say that everyone involved is a 3* SR, including the soul wielding a 3* SR weapon. Each person's burst is then basically 3.5 times their regular attack damage plus 2000. To keep it simple, let's assume that everybody's atk is roughly the same. So a full burst would be 5 of such burst attacks. That's 17.5 times regular attack damage plus 10k. 10% of that would be 1.75 regular attacks plus 1k.
An upper end example would be everyone involved being a 3* SSR, with the soul wielding a 3* SSR weapon (but no awakened kamihime in this instance). For the soul, the burst attack's 4.5x + 2500. For the kamihime, it's 5x + 2500 each. Full burst adds up to 24.5x regular attack damage plus 12.5k. 10% of that would be 2.45x regular attacks plus 1,250.
Also, since it's thunder, I'm assuming that the vast majority of people will be running a +assault eidolon of some sort, as we have yet to get a +thunder event eidolon. So without knowing specifics, +thunder gacha eidolon should be in higher demand overall at this time.
Well, not counting Phoenix of course. But the number of people running Phoenix as opposed to swapping over to some other light eidolon has gone down a lot after Sphinx/St. Nicholas and will probably continue to go down after Barong.
Takemikazuchi has a better effect but I feel many people still don't know the difference between character element atk and element atk. Wind and Dark already have Icarus and Jack o Lantern, making it unlikely to look for her using those teams, so unless you have a decently high break Take, people will generally just grab whatever looks like it has higher value, which would be Girim with 50% at no break, more than any thunder event eidolon at full break.
A sad state of affairs to be certain, I guess I'll use Giri until I get a better one for Thunder on display and change to Take for myself