Update: Twitch drops end tomorrow, so if you still haven’t got it, it’s your last chance to do so.
Just as announced when Season 4 of Battlegrounds got first teased last week, Twitch drops are now active across the entire Hearthstone category.
Make sure that your Twitch & Battle.net accounts are connected. After that, watch any Hearthstone stream for 1 hour to get a new Brann Bronzebeard Battlegrounds Hero skin – Brann Bronzegill.
The drops will last for a ~week, until May 16 at 11:59 PM PT (May 17 at 8:59 CET).
For now, that’s the only way you can get the skin, but it might later become available in the in-game shop for people who have missed it.