Is there even a reason to go ad malzahar anymore? Since his voidlings scale with ap, wouldn't it be better to just go ap and you would do more damage. Its kind of sad that ad malz is basically pointless since you could just go ap and get the same effect (pretty much).
edit: and if you're just going to downvote this explain why. I'm just wondering. Doing the math it seems that ad malz is now pointless.
Kathash1 votesYes his minions scale with AP. A little. +.05% AP. so say you have 1000 AP (reasonable late game), that's 50 bonus damage! Woo! with 108 AD (base no item AD for Malzahar at 18) he gets 54 damage from AD. Rank 5 minions get 20 base magic damage so we add all those up and get... 54 Physical and 70 Magic 124 Total.
Now say we build AD. throw a number like 500 out there. might be a little stretch but it's an even number. His minions get 250 Physical plus 20 base magic and since you probably wouldn't have AP (unless you built Rylai's for the CC which gives them 5 magic damage) thats 270 total damage.
So it's a similar tradeoff to the old AD Malz style builds. Build AP and minions are roughly the same. Build AD and Minions KILL while other stuff is "meh". Aside from his ult. Nether Grasp creates his old pool as the damage source so it does %HP, 10% base at rank 3. Still strong for an AD build. and minions move double-time to that target AND spawn a new voidling the first time each voidling hits a champion. Use visions to guide the minions (it also cause the double-time movement) and visions duration can be extended with call of the void if needed.
All in all AD Malz is VERY viable. Hence why they nurfed his jungle capabilities cause he was too strong. Which caused him to be useless in jungle right now but hey it's PBE.
EDIT: My test build setup gets him 397 AD not counting any fire dragons which still puts minions at 198.5 physical for a total of 223.5 (I use rylai's). and can spawn 6 if timing is right against champions/epic monsters. so for the last for seconds the enemy takes 1341 before armor (roughly as I am not sure the exact attack speed of the minons at that point since its doubled when 3 or more are out). and at 40% CDR you can use the ability just as the last one is about to end for constant minions.
BladeSteel1 votesI still don't think it was as good as ad malz before damage wise. if you had 500 ad the minions would only get 200 damage, which is still a lot, but if you get 300 ad ( a number that is more likely to get in the game) they would do 120 damage...a nerf. Yes they are easier to get out so that should be taken into consideration as well, but they do less damage individually.
before they did 100% of your bonus ad, scaling up to 150% of your bonus ad...so if you had 500 ad (at lv 18) they would do 394 damage...scaling up to 591...
As i see it it is still a nerf. Yes you can get them out easier, but they don't do as much damage, thus 3 minions (old version) vs 3 minions new the old ones win...
And about the ap ratios i thought it was higher. Watching on youtube, even a fed (9-1-3) ad malz doesn't do anything (lost to a 3-4-0 annie...yes malz did ult and had 3 minions out). (could have just been outplayed by a better ranked person since pbe doesn't have ranked but still)
As of right now i don't see a reason to play ad maz over ap...it takes too long to get enough ad to actually do anything. before you would be fine after 2 items..now i don't think thats the case.
Kathash1 votesThey nurfed the numbers all around on Malz but made it easier to use him. Q and E both lost .2% AP ratios (.6 from .8) and R has no solid numbers (was 550 +1.3AP) to only the pool (which is same as old at 10%HP at max lvl +1% per 100 AP) but he has that free banshees veil.
Oh and, something that's a little new, minions now steal life for Malz through life steal. I hope it stays but it REALLY helps sustain in lane to have deaths dance and bloodthirster. and since you aren't spamming AS many abilities for minions, you can attack a bit as well.
KitsuneKrash1 votesVoidlings have a 40% ad scaling & 5% ap scaling. When it comes purely to voidlings, ap is actually rather pointless. More so the voidlings do apply 
keeping Malz rather healthy.
I see hybrid Malz becoming more common honestly. 
will likely be very common since the voidlings apply all of them.