Like after old age or certain amount of knock outs or not making it to Pokemon centers in time?
It would drastically change the game. Pokemon would be dark and depressing. Friendships ending suddenly. Lifelong friendships over in an instant. Pokemon causing people to mass suicide because they lost their beloved Charizard to rabies. An opera of pain bellowed out by the cries of terror from pikachus and sylveons being ripped to shreds by starving tyrantrums. Oh the bloody horror. I love it.
it would be only a thin line between it and monster rancher, but it would make you care about it more. Heck, put in a system that makes it live longer or shorter depending on how well you take care of it lol.
http://tinyurl.com/OperationDecode I Petition to get Digimon: Redigitize localized. Sign if you want it to come stateside
I wanna see Pokemon get torn to literal pieces by my bloodthirsty homicidal team of Pokemon I plan to put together. Maybe if the players Pokemon never died then it would work. My fennekin wishes to taste chespin blood.