I'm looking for advice on how to use the 5* shifter from the campaign going on. Going by the guide on the database I have the following high tier 5* pulls (all have their gacha skill) in sub-optimal type:

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Teal Metatron, Yellow Trumpeter, Yellow Michael, Red Thor, Yellow Thor, Teal Samael.

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So with the shifter I'm trying to figure out which of these have the most to gain/least to lose by trying for a better type. Thanks for the advice!

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Small second question, reading the guide for Trumpeter I was thinking it might be smart to keep him yellow and give him Auto-Rakuga from Yellow Thor, but I know it's generally a bad idea to sacrifice 5* pulls for skill transfers. However the guide says to pair the Yellow Trumpeter with the Auto-Rakuga from the Purple Trumpeter, which seems to be the same thing I'm looking to do here, so does this move actually make sense? Thanks!