Malzahar is a champion very strong, with this build you will never run out of mana and skill will have a very low cooldown. Initially use the Call Of The Void to weaken the enemy, use the Malefic Vision on minion close to the enemy so that when you die the skill steps to the enemy in order to weaken it, you can try to make the kill even before the sixth lv but it is risky, once you reach the sixth level your enemy should have a little less than half of life, use them the Malefic Vision, followed by Ignite and Nether Gasp and so you will get the first kill, the Call of The Void keep it in case you fear that the enemy come to you against your expectations or to mute a jungler. When you make a teamfight try to stay away from the fray, just start using the Call of the Void to mute multiple enemies, use Null Zone to deal damage to tanks, the Malefic Vision use it on the tank that is above the Null Zone so do more damage and the Nether Gasp on the enemy that threatens to do more damage to lock and so your teammates can kill him, or on an enemy at medium to low health so or to kill him or at least some of your allies will come to make the kill. Always try to farm with Malefic Vision at the beginning because you will recover mana each kill then help her to kill minions so you will take more mana, more money and more experience faster, if the enemy came near enough a Call Of The Void for silence him away, possibly killing minions so that he also takes the Malefic Vision that was on the minion. This was my first guide I hope you enjoyed it ^ ^
p.s. Sorry for my eng ç_ç

- Malzahar can't escape easly from an enemy, than stay a little far from the center of the battle and for that problem i use Distortion and that masteries
- This build is so slow to end, not for the cost of the items but for upgrade Arcangel Staff and Manamune, than do much skill as possibile for upgrade early