Board Thread:False Info and Speculative Discussion/@comment-24732895-20140824055602/@comment-13965604-20140913024811

TrueAlphaJ wrote: so the key to evolving as a werewolf is to kill and take the power of your beta the you evolve just like the alpha pack deuc and now derek

Derek only killed one beta and has turned into a full wolf months later, Deucalion and company killed multiple betas and their emmisaries, and never managed a full wolf shift. It has to do with finding inner balance and peace, not killing anyone.