Talk:GUDAGUDA Teito Seihai Kitan/@comment-33844581-20180622235214/@comment-27971189-20180623002207

The drop rate is decent, gold skill gems are in mixed with other gold drops, such as gold monument and gold items (CE, heart, tallow, etc.) so expect several run for one gems.

Lottery box event is not that common, it goes to event that encouraging player involvement like Nero Festival (to upgrade your units soon) and Xmas (to cater players during long holiday).

Da Vinci is special case, serving purposes to keep people excited for introduction of SSR Extra Class Avenger as J. Alter is FGO original with little to no reputation (and FGO is still new game among mobages); they not doing this again for Alter Ego and Foreigner as FGO is famous enough by now.