For me it less about taking the land then keeping it.  There are about 8 or 9 300+ armies out there roaming around.  I have like 2 reasonable armies and 4 good SCs.  They walk over 50 PD no prob, especially the jotun.  Pangaea, Jotun, Lanka, and van I think.  For some reason everything was going well, then suddenly all 4 declared war and are not bothering to fight each other 

  I've got t'ien chi so paths aren't a problem it just seems my use of magic is pretty inefficient.