For questions 1 and 4, you can build heroes any way you want as long as you know how to play that build (cp or wp). Vox's abilities have NO crystal or weapon scaling, his items do not affect his abilities.
For question 2, now minion mines are worth 200 gold any point of time in the game, regardless of whether they are neutral or belong to the enemy team. You can take mines any time that is beneficial to the laner if he is getting pushed too hard or dont take if your laner is overextended....
Posted: Aug 16, 2016