CALLING ALL GAMERS! Baby announcement

Elizabeth
Not pregnant yet, but we've been planning how we'll announce it to each member of our families. I need help with phrasing for the announcement to my brother! He loves video games, so I want to bring him a onesie that says something like "Uncle's New Gaming Buddy"
Or "My Uncle's Going to Teach Me to play Video Games" or something like that...
He really likes league of legends if you can think of some inside joke for that! I don't play, so I would really appreciate some ideas!