Not going to lie, this kind of makes me want to pull 3*'s instead of a 5*.you see the nodes under the special skill for a medal?
They do not show up till 3* and you have to feed a same * level clone to fill up the node.
Each rank adds a new node.
From the guides I have read, if you wait til 6* then you need to fuse it with 5 6* clones.
Its going to be easier to start at 3* from what I understand.
IE:
Fuse 3* (card A) with a clone 3* then rank up to 4*.
Fuse 4* (card A) with a clone 4* then rank up to 5*.
repeat (you will need to fuse 2 6* clones on your main 6*).
Basicaly its fuse with x1 3*, x1 4*, x1 5*, x2 6* or just wait and then fuse with x5 6*
http://chiunion.tumblr.com/post/130792181906/ability-dots-leveling-medals
I'll still do a ten-pull when I save up enough, since I need the immediate benefits of a 5*. Aside from that, I'll start doing my daily 600-gem pulls for the 3* (and occasional 4*/5*) and work on slowly building them up. Well, after I grab the Sora outfit, that is. The ten-pull comes first, though. I need more powerful medals in the immediate so I can clear more of the story content (as well as assist my Friends).