Blizzard just released the details for their latest patch, which brings some balance changes to Standard, Battlegrounds, and Duels.
Patch Notes: https://hearthstone.blizzard.com/en-us/news/23968055/26-4-3-patch-notes
Timestamps
0:00 Introduction
0:53 Standard Nerfs
10:27 Standard Buffs
13:33 Duels
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News | Hearthstone | ...is Paladin DEAD?!? Nerfs and buffs!! Huge Duels changes!