I ended up with 3 SSR weapons and 2 eidolons from Gatcha, enough to MLB both of them with 60/150 medals and 2.9mil PP. Overall the event wasn't terribly rewarding, as I don't have a thunder team to speak of and none of the SR weapons of other elements had assault skill. On top of that, the SSR weapon is defender also. At least my Wind team is now significantly stronger.