Which one should I use for my cavalry team?
My personal preference is +Spd, if she's fully buffed with Gronnblade she's going to KO units fast enough to not be doubled, and she can double anything that is able to live it. Something like Life and Death Desp. w/ Ardent Sacrifice.
+Atk is cheaper to build though, just put Death Blow Gronnblade and you're more or less done. LaD gets slightly more wins but in the end they basically get the same results.
In my opinion Cecilia doesn't rly shine in any of her stats, so both would be fine +Atk oder +Spd.
In my opinion +Spd is a slightly better choice, because preventing as much double attacks as you can and double attack a little more units (with Hone--Buff she can do this; and she also love Fortify buffs, because of her average stat-spread) is most times better, especially if you want to stay with her Gronnraven-tome, because it is easier to work on you Atk with your A-Skill than make you speed better.
With Triangle Adept or any other offensive A-Skill she can fullfil her role good enough.
In summary +Spd is imo the better choice. :)
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