Luke cage should counter shadow king change my mind

I use Luke Cage in my Marvel Snap deck, and he is very helpful against Scream, Groot, and countering locations, etc. However, I don't understand how resetting isn't considered reducing. If a card loses its power, it has been reduced, and Luke Cage simply says it stops your cards from being reduced; it doesn't make sense.

I use Luke Cage in my Marvel Snap deck, and he is very helpful against Scream, Groot, and countering locations, etc. However, I don't understand how resetting isn't considered reducing. If a card loses its power, it has been reduced, and Luke Cage simply says it stops your cards from being reduced; it doesn't make sense.