how much Magic for HT wyverns?

Blacks are 80000 hp. However, Ht seems to heal them way too often compared to the body parts. More than half of the time ht will heal between 2 genesis.

A trick: blacks are fire weak, use meteor to easily 1hko them.

If you want a 2nd source: http://sauna.gibbed.us/monster/8810021/