it completely depends what deck you use. if it's creature heavy you'll probably die badly. if not then he'll get nowhere near 100 bones and you'll have a very easy job. stacking bones would be bad news as it would mean that, as well as regular growth from killed creatures, he will pile up more and more against you far too quick to recover from. besides it's not just morte who i would worry about. PvP would get ridiculous with everyone rushing to pile up around 30 bones as quick as possible.