Talk:Malzahar/@comment-68.37.253.208-20120807020512/@comment-88.186.19.90-20120811231946

It's written in the ability detail section. It's explained in the spellvamp page. DoT spells proc FULL spellvamp; AoE proc 1/3rd spellvamp.

Malefic Vision is a DoT, SINGLE TARGET spell. It procs FULL spellvamp.

Null zone is an AoE DoT. It procs 1/3 spellvamp.