I think that Chen is pretty good for this meta as a roaming/jungling position 4 support. What I'm wondering about is how the introduction of the new HOTD and his talents may change his build from the traditional arcanes-mek-aghs-greaves build that is was typical of 6.88. I've seen a few Chens rushing HOTD (which 4 doesn't though..). It makes sense- if Chen is good with 4 creeps, he is even better with 5. Moreover, the hotd creep benefits from Chen being able to call it in from the other side of the map, and his global heal. So you can potentially have 5 creeps pushing on the other side of the map, and then call them in to push somewhere else. So, HOTD-arcanes-mek-aghs-greaves? Or HOTD-arcanes-mek-aghs-dagon-greaves? I've noticed top Chen players pick up dagon every once in a while.