Hey, I just pulled another Cecilia with -HP +Atk which is honestly the best set she can get for 4* merging in my opinion. Summoner Support patches her stats up to 40 HP and the rest of a 5*+10 +Atk Cecilia's statline then. So this is really beasty.
On the other hand I already have a 5*+2 Cecilia (+Atk -Def). Those are great IVs too, and I already invested 60k feathers for her.
So now I have to chose: abondon the already invested feathers and my summoner support slot to create a 4*+10 Cecilia (I can do this right away). Or I keep my Support slot for my Brave Lyn and go on merging her on 5*s as I already started with. Although it will take a lot of feathers.
What do you think is the best decision?
Be premium, go 5*+10. After all, you already invested in her and you can use the other one's IVs if you want, just promote her and feed her the 5*+2. Besides, you "only" need 3 more merges to make her as strong as a 4*+10 and she'll still be able to get stronger after that.
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