Brawl Block: Autocomplete can add more than one copy of a legendary card

[troggnostupidhs]

https://www.reddit.com/r/hearthstone/comments/c37zb9/autocompleting_this_weeks_tb_deck_put_2_of_the/

Just to note this weeks brawl and the blocks being used,

https://www.reddit.com/r/hearthstone/comments/c2iw14/this_weeks_tavern_brawl_is_brawl_block_gods/

Description: Construct a deck using ONLY cards from Whispers of the Old Gods, Mean Streets of Gadgetzan and Rastakhan's Rumble!

[troggnostupidhs]

I can confirm that this happens. Reproduced by placing 1 Jade Idol in the deck and starting the game. I am unsure if this happens with non-Druid classes.

It may improve your odds to place one of each class legendary into the deck

It is possible that the autofilling is server side, based on this comment

https://www.reddit.com/r/hearthstone/comments/c2iw14/this_weeks_tavern_brawl_is_brawl_block_gods/erkme85/

This is correct, you can queue with a deck of any size (minimum 1). You don't have to use auto-complete, we'll do the backfilling on our side.