Since Alister hasn't awakened his third superpower yet, his third superpower was labeled as "unawakened superpower" in his system status screen.
With that in mind, Alister decided to awaken his third superpower. With his Zombie Virus Absolute Control (Gold) talent, Alister could easily choose what superpower he wanted to awaken.
Of course, even that had its own limits since the zombie virus had limits on awakening superpowers. It was mostly elemental-type or physical-type and it couldn't awaken absurd powers like time or fate.
Even Yun Ren who had awakened a space-type power only had the ability to teleport and even that ability had its limits. Not to mention, the superpower that one could awaken varied among individuals so Alister could either let the zombie virus awaken a new superpower at random, or at least copy the zombie virus of human awakeners or evolved zombies.
