Well, after getting really lucky on the legendary revival banner, netting 4 brave Edelgards including the spark in 175 orbs, I decided I didnt want to wait with +10ing her. I still had the original free 5 star summon available, and needed just one more copy. After Gunnthra showed up, 71 orbs in, I was having second thoughts. Gunnthra is +5 now, so I guess merging her up in march will be good.
However, my luck on this banner wasn’t completely spent yet, as 9 orbs later, there she was. I used the free summon as the final copy.
And now I present, Edelgard;
My 19th 5*+10, only my 3rd 5* exclusive, all of whom happen to be axe units (Brave Ike and Legendary Hector being the other two). She has been serving me very well as a far save unit on ARD, and is my prime candidate for ascension.