Reworked malzahar vs pre-rework malzahar
Pre: Passive voidlings did 1.5 total AD with 2.0 attack speed (when frenzied). 1.0 total AD and 1.25 when not frenzied. Ultimate did 550+1.3AP at level 18. E did 320+0.8AP at rank 5 Q did 300+0.8AP at rank 5
In lane, you would generally have one voidling OR one frenzied voidling and one fresh voidling. Malzahars "DoT burst" was; 550+320+300 (1170) +1.3+1.6 ( 2.9) for a total of 1170 base damage plus 2.9AP of guaranteed damage.
As a laner, this meant that malzahar had a great deal of "Anti assassin" owing to his immobility; if he was jumped, he had the tools to greatly damage his opponent and make them leave or outright burst squishies who tried to pick him off. In the rework, malzahar lost over 50% of his damage in exchange for jungle power.
Post: Q does 230+0.7 W voidlings deal 0.4AD at max rank E does 220+0.7 R does 25%
Guaranteed damage with post rework malzahar is 25% max health +1.4AP +450 base damage. It takes more than TWO voidlings to equal the damage of one non-frenzied pre-rework voidling. Malzahar lost over half his damage to become an objective focused, "enabler" jungle who works well taking objectives quickly and safely, and whose ganks lack power on their own but enable the ally laner to unload in the hopes for a kill. Ganks will never create more than 3 voidlings, and voidlings will never get more than 5 hits in due to the duration of his E and voidlings no longer attacking based on malzahars target.
Changes id like to see: E giving you kill gold if an enemy minion dies AND spreads malefic visions. Voidlings being able to use spell effects (like raylais, black cleaver). Ultimate doing 200/250/300 base damage in addition to the pool.
TL;DR Malzahar lost slightly over 50% of his base damage and scaling in exchange for his voidlings becoming a very powerful jungle tool, which refocused the kit from "anti assassin" into "objective jungler" in one of the strangest reworks of the patch; very little of the original playstyle was preserved as voidlings in the lane are weak and easily killed by any champion with AoEs while containing a majority of malzahars power budget, more or less forcing malzahar into an AD or hybrid jungle position instead of his previous niche as an anti-assassin mid laner.
Whose lane is it anyway?