Hearthpwn

I am a new player to duels and have actually been really enjoying it.  I have been working towards unlocking the hero powers and I have gotten stuck on branns dino tracking simply will not progress no matter how many times I play cards with the keyword discover it’s unfortunate because it seems like the best hero power.  If anyone has a fix it would be appreciated or just some cool duels decks would also be nice. 

Send a support ticket to the helpdesk and explain your problem to them?

There are multiple bug reports about hero power not progressing, propably global bug.

https://us.forums.blizzard.com/en/hearthstone/t/duels-progression-in-unlocking-hero-power/88952
https://us.forums.blizzard.com/en/hearthstone/t/vile-concoction-rogue-duels-hero-power-not-giving-11/89632
https://us.forums.blizzard.com/en/hearthstone/t/sir-finley-duels-power-up-hero-power-not-unlocking/89460
https://us.forums.blizzard.com/en/hearthstone/t/power-up-hero-power-wont-unlock/89608

So you have to wait until they fix it.

Thank you good to know