Notable Bug Fixes

Fixed a problem that resulted in reduced performance and increased battery consumption on mobile devices
Fixed a bug that improperly caused Mishra's Bauble to not show up in limited boosters (it should show up, despite being banned in Historic)

Gameplay Bug Fixes

Fixed a bug where Phyrexian Fleshgorger's Ward could double-charge players
Fixed a bug that could occur when a single creature could tap for "one of any color mana" and also tap like a Powerstone ("Add C. This mana can’t be spent to cast a nonartifact spell.")
Fixed a visual-only bug where Tezzeret, Master of the Bridge's badge would incorrectly count prototype artifacts twice
Fixed multiple bugs that could occur when copying a mutate spell and then destroying the mutate stack that the copy became
Fixed a bug that could occur when you declared and undeclared an attacker 1024 times or more (Seriously, make up your mind!)

Fixed a bug where Equinox styles from MID were causing cards to lose their text
Fixed a bug on mobile platforms that could prevent playing cards properly during one of the tutorial games
Fixed a couple bugs that could cause the Golden Packs meter to either disappear or keep looping if you left the store while it was still animating
Fixed a missing texture on the WAR battlefield
Fixed a bug where some BRR cards erroneously showed an additional style option in the deckbuilder