u/Lost-Atmosphere-8897

I was thinking about this because I thought it would be funny to do a run where I can only use the best Fused Pokemon for every stat

Ok so I want to make a parasite critter that is really easy to kill without a host the problem comes when it has a host so how would the CR work there

The general idea is when it hosts a body it gives a couple points to str, dex, and con to the host(pc or npc) and it keeps it's own int and wis while the cha drops to 1(When it takes over the body). It can be utilized but requires something like a concentration item(something like a fidget) so the character does have some control but if they do lose control they blackout till they regain control.

I want to try a nuzlocke but i don't know where to start should i just shotgun it and pray it goes well or try and make a game plan

Edit:I only have games to play Y, Moon, and US(Not doing this one I heard it was one of the harder ones)