Blue
Ravenous Bugblatter Beast of Traal
Of note, attacking with both ends of a one-handed weapon is controversial. From what I understand, the DMs running the Adventurer's League games will be given significant leeway in interpreting such rules, so you might show up to a game and have your gimmick denied. (It just means you wouldn't be able to use a shield while you do this.)
I would completely call an AL DM on trying to introduce house rules in that case and get the organizer involved. Not that I'd create that character in the first place, but the write up in the PHB is makes no mention of number of hands.
There's been nothing hinting two hands are needed in the Errata or the Sage Advice compilation. And there is errata on the feat, confirming that a character gets it's ability score to the opposite-end damage, so it's not like they haven't had a chance.
That's a house rule that directly contradicts the book, and while it's welcome in any home game I believe AL is supposed to be directly by the book (plus the AL-specific rules).