I think it will still be Shigure who drops. Kana gets fortify dragons at 4* but he's also a GHB unit.
Kana-F has the more coveted pair of skills in Fierce Stance & and a goad. and she's green, a color intsys hates dropping.
Shigure has the most niche stance skill and the least used flier
What I'm saying is I don't trust IS when it comes to dragons, greens and green dragons.
Anyway speaking of: Leif is 5* exclusive, along side the expected thunder twins. Amazing. Naive me though maybe since it was 4 characters, we'd get a half and half or a pie in the sky 2 5*, 1 4-5 (Leif), 1 3-4 (Nanna), completely forgetting that before we went from 4 to 3 character banners they had that sacred stones banner where 3 units stayed 5 stars.
On the brightside, I went into this banner with 135 orbs and...
this happened!
I honestly really want Hinoka, but with golden week & the legendary banner around the corner, I may as well wait a bit.