I've reworked Malzahar's *W* for you Riot!
W (Blood Portal) or whatever better name anyone could suggest:- Malzahar puts his Dagger into use and sacrifices % of his HP and creates a zone of negative energy at the target location for 5 seconds, dealing magic damage every second to all enemies standing on it and summons a voidling every 1.5 seconds. Cooldown: 28 seconds.
R (Nether Grasp) : the same old ult with flat magic damage but still reduced from MAGIC DAMAGE PER HALF SECOND: 50 / 80 / 110 (+ 26% AP) 」to 40/70/100 (+20% AP).
You see, thematically and gameplay wise, his old nullzone looked like a portal that deals damage, so why not turn it into an actual portal that deals less damage that his previous W and still summon voidlings in that specific location instead of spamming them wherever at will. I believe this will create better counterplay since the voidlings locations of summoning are obvious.