Gah! I can't for the life of me find out who I am supposed to find! Been stuck on "Changing the Game" for a long time, got all others. I think I recognize the man on the icon but I don't know who he is! YEARGHGHH!
Edit: Alright! I finished it. I decided to go with the first thing that popped into my head when I thought of "giant lions" (guess I should have done it earlier) and it turns out this guy is the brain behind many games where you get to SPOILER WARNING: Click here to reveal hidden content.
I have never in my whole life of gaming (as far as I can remember) fought a #2. I would have never guessed it if it wasn't for Meltbrain's very obvious hint on page 4, even though I know I've seen the name of it several times in lists of D&D monsters, but thought "No way that it can be that, I've never heard of it", so I didn't type it in . . . .