Ban Doc Aurlock in Standard (or at least BO1)
This enablement with airbending leads to extremely lengthy turns with no win condition in sight as a player often times slowly assembles a stack of 1/1 tokens and eventually passes the turn or worse (exploit/glitch?) causes their opponent to timeout and lose the ability to react. The latter occurs if the opponent has a response that they must continuously acknowledge. The airbending player never seems to time out and can perform the loop as frequently as they wish while causing their opponent to timeout (certain circumstances). This playloop is reminiscent of copycat in Kaladesh Standard or in more recent times the Nexus of Fate loop from Dominaria/WAR. The nature of Arena makes these sorts of interactions very painful, especially in BO1 play where a player can't even sideboard against it. These decks are an increasing amount of the meta and lead to very long drawn out non games with the primary wincons being scoop to boredom, timeout exploit, or the opponent simply dying of old age. An emergency ban is needed, at least on Arena where the nature of the game engine itself makes it excruciating vs simply demonstrating a loop in paper.