Make transforming monsters drop their respective card

Hey, apologise in advance for my terrible English and my terrible grammar.

anyways i'm currently pursuing my tier 10 ring and farming right now for dark yeti card.
while trying to farm at Sharp Cliff I (since this is the map with most dark yeti spawn) it came to my mind why not making the transformed and separated version drop their respective card?
(Transformed dark yeti = Dark yeti card, Separated yeti = yeti card, separated pepe = pepe card and so on..)
its just makes sense that they'll drop these cards since separated/transformed yeti is no different from regular yeti idk.

Anyways i'll be grateful (and probably most player will) if you'll take it into consideration!