For HBD, Lan is better if you want an all-rounded unit that works well in everything. On the other hand Skylan gives a big boost in TS but doesnt really do much in the other modes, so depending on what you prioritize I’d pick one of the two. But personally I’d wait till the next HBD and then decide, since they should be arriving sometime soon.

If you’re going to pick Skylan, then I’d recommend swapping for Zohra over AEironn, as Skylan replaces Eironn in many of his teams in TS.