"I thought your ability was powerful before but now that you've explained everything to me I realize it's even more impressive. To think, you're not just copying an ability but quite literally absorbing it permanently after you kill the User who possessed it, then you're able to trade the abilities you have for new ones at any point in time, allowing you to change your strengths and weaknesses to suit your situation.
You're also able to hold more abilities at one time as your ability increases in rank, if we couple that with the fact that you went from G to F rank in just a few weeks then you will be the fastest growing User in history, as well as a candidate for strongest some day. Even the way you can sacrifice abilities to make others stronger is amazing..." Tom's words held a tone of anticipation as he considered the future with hopeful eyes.