Nourish is an interesting choice for Koumei due to how well she can supposedly energy tank with Omamori. Naturally high armour and decent health means she gets good Rage conversions and particularly high energy efficiency for Quick Thinking. Her good energy economy means she’s not drawing from her energy pool much either.

I say supposedly because I couldn’t really make an energy tank build fit with my build goals so I gave up. Something to experiment with at any rate.