My mule's Naja used peacebreaker at personal rank 5 when I unlocked it so doesn't seem to be based on rank. Also saw her spam Hexa a bunch of times. This was at level 60 or so too so none of her ws are level based either, which is true of most trusts. I actually haven't seen any UC trusts behave differently based on personal evaluation or unity ranking. Ayame did act weird one day though deciding to never use a ws and only shikikoyo TP to me every time it was up. I was probably killing mobs too fast though since she likes to close SC. I changed unities to Apururu and haven't looked back since.
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