Depends on if this version of parasite has a limit in how much he can leech off others or not. I remember in some plotlines that he'd get overwhelmed by sucking up too much power.
I've made a similar post few months back. Parasite could theoretically absorb his powers, but Doomsday would maul him to death long before he gets a chance.
@Eye Lad Yeah, the only way he would have a chance is if he leeched off Superman first and then went after Doomsday. maybe. there's the issue that he could still get overwhelmed just from draining so much of Doomsday's power though.
