I think he should be removed from the quillboar pool as I see someone get 5000 plus attack on one with the new buddy
And? You can easily do this with several buddies. The one that alternates hp/attack has a buddy that gets exponentially bigger each turn. You can copy it with mysterious stranger buddy + battle cry copying for a full board of 2k/2k minions by like turn 10. Thats not even all of them.