User blog comment:Emptylord/Leaked Champion: Vel'Koz/@comment-4057638-20140210210510

Void sends Kha'zix and Vel' Koz to inflitrate(Kha'zix lore stated that he inflitrated" to help the void prepare. Zix invades the jungle and Vel'koz the frozen lands. Crossing the portals take lots of energy.  As shown in Zix's lore, he arrived with almost no energy, maybe due to the fact that he spent almost all of his energy to enter Valoran. This would also explain the delay in Vel'Koz's arrival, as the void needed more energy to send another entity to freljord. Kha,zix, when first arrived, immediatly killed other beasts for energy, perhaps to gather information or to save up energy to return to the void. But then, he finds rengar, and they bot almost die. Thus, zix deems rengar as a threat to the void and wants to kill him. Discovering that rengar went to the League, Kha'zix followed him, only to discover many other powerful entities. Realizing that he couldn't defeat all the enemies in the league, Zix sent for reinforcements, which could be Kog'maw, cho'gath and Vel'koz(It is statd in Cho'gaths lore that Cho'gath has near no reason to stay in the league and a dark, intelligent outside source(the void) controls him, while a dark being (malzahar) performes dark rituals to open the portal to the void. "Its fellows have been poking at the walls that divide dimensions for a crack, a way into Runeterra, where they can visit their own personal paradise of horror upon the world." (cho'gath lore quote). This could mean the fact that the cracks were entities like kha'zix, which were sent through different means to Runeterra. One of these means could be malzahar, in which the void attempted to manipulate others to open the cracks between the void and runeterra from the opposite side. But, after discovering this method to fail, they tried to manipulate another being from Runeterra, being Kassadin. The void obviously gave malzahar his powers, and, as shown in his splash, he opens portals for voidlings to appear. So, they are trying to figure out how beings from Runeterra can open portals to greater size, and use Malzahar as a guinea pig for the tests. One of these tests might be Kog'maw. It says in Kog'maw's lore that a voice called malzahar to Icathia (the void manipulating Malzahar) and summoned Kog'maw. " It also encouraged him to familiarize himself with his new environment" is quote from Kog'maw's lore, which may be the void using kogmaw to further probe into Valoran.