Setting up a custom game with bots only and ability draft mode bugges out the bots. They pick their skills on the draft but when the game starts they won't move or do anything. Some might buy some items but it seems that in each team only 3 heroes will do so (2 bots on the players' team and 3 bots on the opposite one). Also don't know if it's a bug or intended but during the draft, if you select a skill with time remaining you're forced to wait until the timer reaches 0, unlike in captains mode where the pickturn passes on to the next immediately when a pick is made. Not the biggest issue, though it does drag the draft on.