Just fucking revert the kit already - this rework of him has been an unmitigated disaster, since he plays nowhere near as he used to. Old Malzahar was a beast, you could even time your cast to spawn voidlings to intercept skillshots for you, you needed better posititioning (enemy also did though...).
Anyways, to try being constructive: Put some more power back into E (280+0,8 AP) , as it's now just tickling opponents. Hey, it's still 40 lower base compared to before... Add old delay to Q, so it's not autohit. Make voidlings blink to ulted target if the target is within 350 units of Malz - to keep his anti assassin/tank kit.
Revert W voidlings back to spawning at malz in direction of enemy, pre-rework HP (maybe even more), duration, dmg and enrage, with some AP scaling to make up for the total butchering of his ult (shame on you Rito). Have the CD at rank 1 be the average time it took old malz to get four rank 1 spells off, and rank 5 be the average time it took old malz to get four fully levelled spells off.
This will enable Malz to mass a little voidlings, give the enemy an indicator of when he's dangerous, incline enemies to keep their numbers down, and he can't just max W, as it will result in him not being a true threat - at best, he would max it 2nd. Also, if he goes full max W mode in the jungle, the offset is he's very easy to kill - And if it's still a problem, have voidlings take extra damage from jungle creeps.
There, I somewhat fixed him!
[slayer-jinx-catface]
(Yes, shamelessly copy pasta'd from another thread...)