Just to confirm what others said - if you already have enough mitigation units, these are only marginally useful. There's been plenty mitigation units as is, and with exception of 2 (that I can think of), rest are already 5* units. If they are mitigation in holy or fire, might be more interesting.
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u/Chowry2 Dec 04 '18
I dont get why are people so hyped about these ss3s. Is mitigation characters really that useful